What subatomic particles are found in the space surrounding an atoms nucleus. a.electronsb. ions and protons c. neutrons and electronsd. protons and neutrons

Option (A) is the correct answer.

Explanation:

It is know that each element consists of three sub-atomic particles. These are protons, neutrons and electrons.

Inside the nucleus of an atom, there will be only protons and neutrons. Whereas electrons revolve around the nucleus of an atom.

Protons have a positive charge, neutrons have no charge and electrons have a negative charge.

Therefore, we can conclude that electrons are the subatomic particles which are found in the space surrounding an atoms nucleus.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.