Question

1) How can you determine the number of protons in the nucleus of an atom of any of the elements listed in the table?

Answer 1

1.) The number of protons in the atomic number of the element. Like Carbon has 6 protons because it’s atomic number is 6. The atomic number is in the top left corner of most periodic tables.

2.) Silicon(Si)

3.) The number of electrons should be the same as the number of protons. If you are doing a Bohr model you put 2 electrons in the first ring, eight in the second ring and 18 in the third. Carbon should have 6 in its outer shells.

4.) Potassium(K)

5.) To fins neutrons subtract the atomic weight from the atomic number.

6.) Hydrogen(H)

7.) 30 neutrons, 56-26

8.) 17 protons, 17 electrons in the outer shell, and 18 neutrons