The atomic number of an atom is alwaysequal to the number of its. (1) protons, only. (2) neutrons, only. (3) protons plus neutrons. (4) protons plus electrons

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Answer 1

Answer: You are correct, the atomic number is always equal to the number of protons in the element. It is the relative atomic mass that is equal to the number of protons+neutrons. Electrons have no mass

Related Questions

Which element is classified as an alkali metal?
If 62.0 grams of magnesium metal (Mg) react with 55.5 grams of oxygen gas (O2) in a synthesis reaction, how many grams of the excess reactant will be left over when the reaction is complete? Be sure to write out the balanced equation for this reaction and to show all of your work.
Na2S2O3 + KBrO3 + H2SO4 = Na2S4O6 + K2SO4 + Na2SO4 + Br2 + H2O
A mixture which contains more than one phase is called .
HCl solution, about 250 mL in volume. The pH of the solution is 1.37. Calculate the molar concentration of HCl in this solution. Please use the scientific presentation of the numerical answers (i.e., 1.23x 102), and round your answers to two decimal places.

How do you convert mol dm-3 to gdm-3 and vice versa

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concerntration in moldm-³=concerntration in gdm-³ ÷ molar mass of the compound
try this out
hope this helps *winks*

Okay! So if 50g of Lithium Bromide is mixed with 100g of water at 20 degrees Celsius a solution forms. If the water was heated to 70 degrees Celsius would the solution form faster, slower, or at the same rate and why?

Answers

Answer:

The lithium bromide salt is a neutral salt that when reacted with water, it can dissolve and form a supersaturated, balanced or slightly saturated solution.

If we increase the temperature of said reaction, we promote the dissociation of the molecules, thus helping to dissolve, in this way the solution would form much faster than at 60 degrees Celsius.

Explanation:

As this chemical compound is a neutral salt, we mean that its pH is neutral.

Binary salts are combinations of 2 elements other than hydrogen and oxygen. The union of a metallic element with a non-metallic element forms a neutral salt, while the union of a non-metallic element with another non-metallic element forms a volatile salt.

The types of neutral salts that exist are: fluorides, chlorides, bromides, iodides, astatides, sulfides, tellurides, selenides, nitrides, phosphides, arsenides, antimonides, borides, carbides and silicides.

List five basic steps of the scientific method

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We can reduce it to optic.

Observation is the process of knowing the problem
Prediction is the process of making a hypothesis
Testing is the experimentation
Interpretation is the data analyzation
Conclusion is the implication and ramifications of the study.

What is the difference between gram positive and gram negative?

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one is possitive and one is negatve

Which of the following are likely to not form bonds? A gold atoms.b. Oxygen atoms.
c. neon atoms.
d. magnesium and chlorine atoms.

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I believe C is your best choice forgive me if I am wrong.

Explain why all ores are minerals but all minerals are not ores.

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An ore is a type of rock that contains many minerals. But a mineral is just a part of the ore. So all ores are minerals but all minerals are not ores.

Minerals:Metal bearing substance, found in earth's crust are called minerals
Ore:the Minerals which metals can be obtained on a commercial scale are called Ores
form this definitions we can understand that ores are minerals which is used to obtain metals so, only all ores are minerals but all minerals are not ores.

Other Questions

What is the final temperature of the solution formed when 1.52 g of NaOH is added to 35.5 g of water at 20.1 °C in a calorimeter? NaOH (s) → Na+ (aq) + OH– (aq) ∆H = -44.5 kJ/mol

How many kilograms are in a 50 pound luggage bag?

Atoms of different isotopes of the same element differ in their total number of electrons neutrons protons valence electrons

Pls help its due in a few minutes