You've just solved a problem and the answer is the mass of an electron, me=9.11×10−31kilograms. How would you enter this number into the answer box?

Answers

Answer 1

Answer:

The mass of an electron can be expressed in the box as $\boxed{{m_e} = 9.1 * {{10}^( - 31)}{\text{ kg}}}$ .

Further explanation:

Atom is the smallest particle that can be present in any element. It is also known as the building unit of matter. Each atom has a central part that is known as the atomic nucleus. There are three subatomic particles that constitute the atom. These particles are protons, neutrons, and electrons. The atomic nucleus consists of protons and neutrons, both are collectively called nucleons. Electrons revolve around the nucleus of an atom in definite orbits.

Protons are positively charged subatomic particles, electrons are negatively charged and neutrons have no charge. Since electrons carry a unit negative charge, these create an electric field around them. These also participate in nuclear reactions. The mass of an electron $\left( {{m_e}} \right)$ is $9.1 * {10^( - 31)}{\text{ kg}}$ , that of protons is $1.6726219 * {10^( - 27)}{\text{ kg}}$ and that of neutrons is $1.674927471 * {10^( - 27)}{\text{ kg}}$ . The electrons are responsible for chemical properties of elements. The distribution and arrangement of electrons is used to predict whether the element will be inert or reactive.

Therefore the required answer is $\boxed{{m_e} = 9.1 * {{10}^( - 31)}{\text{ kg}}}$ .

Learn more:

Component of John Dalton’s atomic theory: brainly.com/question/2357175
Basis of investigation for the scientists: brainly.com/question/158048

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Atomic structure

Keywords: atom, matter, atomic nucleus, proton, electron, neutron, subatomic particle, nuclear reactions, electric field, reactive, inert.

Related Questions

The relatively high boiling point of water is due to water havingA) hydrogen bondingB) metallic bondingC) nonpolar covalent bondingD) strong ionic bonding
1 pointNitrogen has three occurring isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15. Which isotope is the most abundant?
According to the Pauli exclusion principle, when can two electrons occupy the same orbital?
Which list of nuclear emissions is arranged in order from the greatest penetrating power to the least penetrating power?(1) alpha particle, beta particle, gamma ray(2) alpha particle, gamma ray, beta particle(3) gamma ray, alpha particle, beta particle(4) gamma ray, beta particle, alpha particle
Which element is the most reactive?sodium, nickel, carbon, or oxygen

What is the isotope and isotopic notation symbol for Z = 29, A = 65?

Answers

Isotopes are atoms with the same number or protons and electrons but different numbers of neutrons.
Here, we got Z = 29 so the charge of the nucleus is 29, and A is the atomic mass.
Since the atom number (Z) is 29, so i guess the isotope is the Copper.
Isotopic notation: $Cu_(29)^(65)$

Hope this Helps :)

Final answer:

The isotope with atomic number Z = 29 and atomic mass A = 65 is for Copper and its isotopic notation is 65Cu.

Explanation:

The isotope with atomic number Z = 29 and atomic mass A = 65 is for the element Copper (Cu). To write this in isotopic notation, you represent it as 65Cu. Here, the atomic number Z (number of protons) is represented by Cu and the mass number A (number of protons + neutrons) is represented by the superscript number 65. Thus, the isotope notation symbol for this is is 65Cu.

Learn more about Isotopic Notation here:

brainly.com/question/35467285

#SPJ6

Which description explains the role of activation energy in a chemical reaction? A .It provides useful energy that is released in an exothermic reaction.
B. It stops the products from being formed from the intermediate state.
C. It slows down the overall chemical reaction so it does not happen too quickly.
D. It provides reactants with sufficient energy for bonds to break and reform.

Answers

Answer: The description it provides reactants with sufficient energy for bonds to break and reform best explains the role of activation energy in a chemical reaction.

Explanation:

Activation energy is defined as the minimum amount of required energy so that a chemical reaction can initiate.

As a result, it provides the reactants with certain amount of energy so that they will get the necessary amount of energy to break their bond and then form new bonds.

Thus, we can conclude that the description it provides reactants with sufficient energy for bonds to break and reform best explains the role of activation energy in a chemical reaction.

D. Activation energy is the energy that is required in order for a reaction to occur, i.e. break and form new bonds

If the hydrogen ion concentration is 10-7M, what is the pH of the solution?Show all work.

Answers

Remember pH=-log(H ions). So it would be pH=-log(10^-7).

Which element is present in all organiccompounds?
(1) nitrogen
(2) oxygen
(3) carbon
(4) sulfur

Answers

i'm pretty sure hydrogen is but i would go with #3 carbon

Which substance is an electrolyte?
(1) CH3OH (3) H2O
(2) C6H12O6 (4) KOH

Answers

Answer:

The answer is 4) KOH

Explanation:

Electrolytes are substances which ionize when dissolved in water. They are classified as:

Strong electrolyte: Which completely ionize when in water. Eg: NAOH, KOH (produces K+ and OH- ions when dissolved in water)

Weak electrolyte: partially ionize when in water. Eg: Acetic acid

Non-electrolyte: Do not ionize at all in water. Eg: Alcohols such CH3OH, sugars such as glucose (C6H12O6).

KOH is an electrolyte. Therefore, option (4) is correct.

Electricity flows via water-dissolved materials. Ions in a solution conduct electricity.The options:When dissolved in water, methanol (CH3OH) does not form ions.2. C6H12O6 (Glucose): It does not dissolve into ions in water, hence it is not an electrolyte.

Water doesn't dissolve into ions, hence it's not an electrolyte.4. Dissolved in water, potassium hydroxide (KOH) forms ions (K+ and OH-), making it an electrolyte. Therefore, KOH as an electrolyte is the correct option.

Learn more about electrolytes, here:

brainly.com/question/32477009

#SPJ6

Which element is rolled into a foil found and used in your kitchen?

Answers

The question is asking to determine what kind of element is rolled into a a foil and used in you kitchen, and base on my own research and also in understanding the elements, I would say that the answer would be Aluminum. I hope you are satisfied with my answer and feel free to ask for more

aluminium ........................

Other Questions

Which state of matter is more dense?

Which statement about one atom of an element identifies the element?(1) The atom has 1 proton. (2) The atom has 2 neutrons.(3) The sum of the number of protons and neutrons in the atom is 3.(4) The difference between the number of neutrons and protons in the atom is 1.

2. If an eagle is flying at a constant speed, it is accelerating. True orFalse

What is the chemical formula for one phosphorus atom, three chlorine atoms, one oxygen atom?