Chemistry question??

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Chemistry question??

1. How is the number of electrons in a neutral atom related to the atomic number of the element?
2. What information does the mass number of an isotope provide?
Is the answer to number 2 ... They show the average mass of an atom in a sample.

THANK YOU!!!!!!!!!!!!!!!

2007-11-01 07:23:45 · 1 answers · asked by babygrlnpnk999 1 in Science & Mathematics ➔ Chemistry

1 answers

1. If the atom is neutral, the number of electrons will be equal to the number of protons. The atomic number IS the number of protons, so they are the same.

2. The mass number is always the sum of the number of protons + the number of neutrons in the nucleus.

2007-11-01 07:27:37 · answer #1 · answered by hcbiochem 7 · 0⤊ 0⤋