Select all that apply. The three subatomic particles are _____. neurons photons protons neutrons charges electrons

Answers

Answer 1

Answer: Neutrons, Electrons, and Protons
Neutrons are the neutrally charged particles that are found in the nucleus.
Protons are the positively charged particles that are found in the nucleus.
Electrons are the negatively charged particles that are found in the atom's orbitals/shells

Answer 2

Answer:

Answer:Neutrons, Electrons, and Protons

Related Questions

Answer the following questions: On a 10-fold dilution of a weak acid, the pH will ______________ . On a 10-fold dilution of a weak base, the pH will ______________. If one adds a very small amount of strong base to a buffered solution, the pH will _______________. Can you make a buffer using a strong acid
Plz help me i need to know how to do this!!!
This element has a complete outermost energy level and is found in the 4th period.
How many moles are present in 4.7 liters of Argon gas at STP?
The tendency of an element to react is closely related toa. its atomic mass.b. attractions between its atoms.c. the number of valence electrons in atoms of the element.d. the ratio of protons to neutrons in atoms of the element

You have two bottles of water. One bottle is left outside in the sun for two hours. The other is left in an air-conditioned room for the same amount of time. What would you expect to observe after the two hours?The bottle left outside will have lower vapor pressure than the bottle from the room.

The bottle left outside will have the same vapor pressure as the bottle inside the room because they both contain water.

The bottle left outside will have higher vapor pressure than the bottle from the room.

No change to either bottle.

Answers

You have two bottles of water. One bottle is left outside in the sun for two hours. The other is left in an air-conditioned room for the same amount oftime. After 2 hours, I would expect that the bottle left outside will have higher vapor pressure than the bottle from the room.

1. Mendeleev organized elements in his periodic table in order of increasing ____________________. 2. You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would select the compound with the ____________________ melting point.

3. Two factors that determine whether a molecule is polar are the types of atoms in the molecule and the ____________________ of the molecule.

4. According to John Dalton’s observations, when elements combine in a compound

A. The ratio of their masses is always the same.
B. Each element contributes an equal number of atoms.
C. Their volumes are always equal.
D. Their masses are always equal.

5. Democritus thought that matter was made of tiny particles

A. Of earth, air, fire, and water.
B. That could not be divided.
C. That could be divided.
D. That were all round and smooth

6. Rutherford’s gold foil experiment provided evidence for which of the following statements?

A. Negative and positive charges are spread evenly throughout an atom.
B. Alpha particles have a positive charge.
C. Gold is not as dense as previously thought.
D. There is a dense, positively charged mass in the center of an atom.

7. Which statement about subatomic particles is true?

A. Protons, neutrons, and electrons all have about the same mass.
B. Unlike protons or neutrons, electrons have no mass.
C. Neutrons have no charge and no mass.
D. An electron has far less mass than either a proton or neutron.

8. Which statement is true about oxygen-17 and oxygen-18?

A. They do not have the same number of protons.
B. Their atoms have an identical mass.
C. They are isotopes of oxygen.
D. They have the same mass number.

9. Which statement accurately represents the arrangement of electrons in Bohr’s atomic model?

A. Electrons vibrate in fixed locations around the nucleus.
B. Electrons travel around the nucleus in fixed energy levels with energies that vary from level to level.
C. Electrons travel around the nucleus in fixed energy levels with equal amounts of energy.
D. Electrons travel randomly in the relatively large space outside the nucleus.

10. What does the electron cloud model describe?

A. The most likely locations of electrons in atoms
B. The precise locations of electrons in atoms
C. The number of electrons in an atom
D. The mass of the electrons in an atom

11. What is the difference between an atom in the ground state and an atom in an excited state?

A. The atom in the ground state has less energy and is less stable than the atom in an excited state.
B. The atom in an excited state has one fewer electron than the atom in the ground state.
C. The atom in an excited state has more energy and is less stable than the atom in the ground state.
D. The atom in an excited state has one more electron than the atom in the ground state.

12. The usefulness of Mendeleev’s periodic table was confirmed by

A. the discovery of subatomic particles.
B. its immediate acceptance by other scientists.
C. the discovery of elements with predicted properties.
D. the discovery of the nucleus.

13. Atoms of the most reactive elements tend to have

A. one or seven valence electrons.
B. eight valence electrons.
C. four or five valence electrons.
D. no valence electrons.

Answers

1. Atomic Mass

2. Highest melting point

3. Configuration

4. A

5. A

6. D

7. A

8. C

9. B

10. A

11. C

12. C

13. A

Final answer:

This answer explains chemical concepts related to the periodic table, atomic theory, the nature of molecules, and properties of subatomic particles.

Explanation:

1. Mendeleev organized elements in his periodic table in order of increasing atomic mass.

2. You would select the compound with the highest melting point as the ionic compound.

3. The types of atoms in the molecule and the shape of the molecule determine whether a molecule is polar.

4. According to Dalton, The ratio of their masses is always the same when elements combine in a compound.

5. Democritus thought that matter was made of tiny particles that could not be divided.

6. Rutherford’s gold foil experiment provided evidence that there is a dense, positively charged mass in the center of an atom.

7. It’s true that an electron has far less mass than either a proton or neutron.

8. Oxygen-17 and oxygen-18 are isotopes of oxygen.

9. In Bohr’s atomic model, electrons travel around the nucleus in fixed energy levels with energies that vary from level to level.

10. The electron cloud model describes the most likely locations of electrons.

11. An atom in an excited state has more energy, and is less stable than an atom in the ground state.

12. The usefulness of Mendeleev’s periodic table was confirmed by the discovery of elements with predicted properties.

13. Atoms of the most reactive elements tend to have one or seven valence electrons.

Learn more about Chemical Concepts here:

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A pain-relieving pill has a mass of 0.005 g. Express the pill’s mass in grams using scientific notation or in milligrams.

Answers

Answer : The mass represented in scientific notation as $5.0* 10^(-3)g$ and the mass in milligram is, 5 mg

Explanation :

Scientific notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example :

5000 is written as $5.0* 10^3$

889.9 is written as $8.899* 10^(-2)$

In this examples, 5000 and 889.9 are written in the standard notation and $5.0* 10^3$ and $8.899* 10^(-2)$ are written in the scientific notation.

If the decimal is shifting to right side, the power of 10 is negative and if the decimal is shifting to left side, the power of 10 is positive.

As we are given the 0.005 g in standard notation.

Now converting this into scientific notation, we get:

$\Rightarrow 0.005g=5.0* 10^(-3)g$

As, the decimal point is shifting to right side, thus the power of 10 is negative.

Thus, the mass represented in scientific notation as $5.0* 10^(-3)g$

Now we have to determine the mass in milligram.

The conversion used from gram to kilogram is:

1 gram = 1000 milligram

or,

1 g = 1000 mg

As we are given the mass 0.005 grams.

As, 1 gram mass = 1000 mg

So, 0.005 gram mass = $(1000g)/(1g)* 0.005mg=5mg$

The mass in milligram is, 5 mg

$\boxed{ \ 5.0 * 10^(-3) \ grams \rightarrow 5.0 \ milligrams \ }$

Further explanation

Scientific notation represents the precise way scientists handle exceptionally abundant digits or extremely inadequate numbers in the product of a decimal form of number and powers of ten.

Put differently, such numbers can be rewritten as a simple number multiplied by 10 raised to a certain exponent or power. It is a system for expressing extremely broad or exceedingly narrow digits compactly.

Scientific notation should be in the form of

$\boxed{ \ a * 10^n \ }$

where

$\boxed{ \ 1 \leq a \ < 10 \ }$

The number "a" is called "mantissa" and the exponent "n" the order of magnitude.

The exponent tells about the size of the number.

A positive exponent indicates a number greater than or equal to 1.
A negatifive exponent indicates a number between 0 and 1.

From the key questions asked, we face the standard form of 0.005 grams which will be converted into scientific notation.

$0.005 = (5)/(1,000)$

The coefficient (or mantissa) is 5, which has fulfilled the interval 1 ≤ a < 10.
The denominator consists precisely of three zero digits.

Hence, 0.005 grams is written in scientific notation as $\boxed{ \ 5.0 * 10^(-3) \ grams \ }$

Because 1 milligrams is equal to 10⁻³ grams, then

$5.0 * 10^(-3) \ grams * (1 \ milligrams)/(10^(-3) \ grams)$

Hence, 0,005 grams is 5.0 milligrams.

In science, we frequently must deal with extremely small or incredibly large quantities. For a typical example, one of the recognized limitations of the microwave frequency is 300,000,000 Hz with a photon energy of 0.00000124 eV. They with many zeros can be impractical to work with, so scientists properly implement scientific notation.

The inverse of scientific notation is the standard form. To promptly change scientific notation into standard form, we reverse the process, move the decimal point to the right or left. This expanded form is called the standard form.

$\boxed{ \ 3.0 * 10^(8) \ Hz \ \rightarrow 300,000,000 \ Hz \ or \ 300 \ MHz \ }$

$\boxed{ \ 0.00000124 \ eV \ \rightarrow 1.24 * 10^(-6) \ eV \ or \ 1.24 \ \mu eV \ }$

Learn more

How is 0.00069 written in scientific notation? brainly.com/question/1898080
How to explain 3,482,000,000 in scientific notation brainly.com/question/231855
Convert the number expressed in standard form to scientific notation brainly.com/question/10436883

Keywords: a pain-relieving pill has a mass, 0.005 grams, express, written, in scientific notation, milligrams, expanded form, exponent, base, standard form, mantissa, the order of magnitude, power, decimal, very large, small, figures, abundant digits, inadequate

The process where bacteria takes nitrogen out of the air and makes it usable for other organisms is called

Answers

Answer:

The process is called Nitrogen fixation

Explanation:

The nitrogen fixation is a process carried out by some prokaryotic microorganisms (bacteria), specifically those have the presence of the nitrogenase enzyme. The bacteria absorb the atmospheric nitrogen (N2) from the roots of plants, and the nitrogenase enzyme, with the help of two proteins that act as electron donors and acceptors (nitrogenase complex) reduce the nitrogen to ammonia (NH3), then the ammonia is ionized to NH4+ (ammonium). Followed by that, the ammonia is oxidated to nitrates and nitrites, which are finally absorbed again by plants.

Apparently, the first organic compound synthesized in the lab was sucrose. true or false

Answers

The correct option is False.

The first organic compound synthesized in the lab was urea. It was synthesized from silver cyanate and ammonium chloride. It is named Wöhler synthesis after the German chemist.

NH₄Cl + AgNCO → H₂NCONH₂

Urea was first synthesized in 1828 and its synthesis was the beginning of modern organic chemistry.

False, it was Urea
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Corn, Cotton, Tobacco, and Wheat are examples of what?Question 3 options:

Plantations

Economies

Colonies

Cash Crops

Answers

Answer: cash crops

Explanation:

trust

Answer: Cash Crops

Explanation: These crops were used in the south to make loads of money before the civil war in southern plantations so they were known as cash crops

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How much of a 5.0 g sample of strontium-90 will remain after 87 years?

A stone falls from a ledge and takes 8 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall is the ledge? A. 313.6 meters B. 78.4 meters C. 1,254.4 meters D. 39.2 meters

The action of some commercial drain cleaners is based on the following reaction: 2 NaOH(s) + 2 Al(s) + 6 H2O(l) → 2 NaAl(OH)4(s) + 3 H2(g) What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH?