Question

What is answer from the periodic table please help very urgent due today ​

Answer 1

4 electron/proton

Step-by-step explanation:

in first shell it has 2 electron

then in second shell it has 2 electron also

so add them together we get 4

Answer 2

4

Step-by-step explanation:

You know this by looking at the number of protons and electrons which represents the atomic number.