Why is atom electrically neutral​

Atoms are made up of positively charged particles called protons and negatively charged particles called electrons as well as non-charged particles called neutrons. The charge from a proton or electron are of equal strength, therefore if an atom has an equal number of protons and electrons, it will be electrically neutral.

Explanation:

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.