3 years ago

What is the atomic number of an atom?

Chemistry

2 answers:

Romashka-Z-Leto [24]3 years ago

4 0

Answer:

The atomic number of an atom is the number of protons in the nucleus or the number of electrons in a neutral atom

Explanation:

Musya8 [376]3 years ago

3 0

Number of protons in the nucleus

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defon

1) Calcium carbonate contains 40.0% calcium by weight.
M(CaCO₃)=100.1 g/mol
M(Ca)=40.1 g/mol
w(Ca)=40.1/100.1=0.400 (40.0%)!

2) Mass fraction of this is excessive data.

3) The solution is:

m(Ca)=1.2 g

m(CaCO₃)=M(CaCO₃)*m(Ca)/M(Ca)

m(CaCO₃)=100.1g/mol*1.2g/40.1g/mol=3.0 g

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3 years ago

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In the laboratory, a volume of 100 mL of sulfuric acid (H2SO4) is recorded. How many g are there of the liquid if its density is

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Answer:

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Explanation:

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QUESTION 11

Iteru [2.4K]

I actually don’t know but good question

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What is the atomic number of an atom?​

What is the atomic number of an atom?