Question

What do the atoms of elements in the same period have in common?

Answer 1

Answer:

Like PERIODic table.). All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.

Explanation:

Answer 2

Answer:

Atoms in the same group share the same amount of valence electrons and reactivity. Atoms in the same period, share energy levels.

Explanation: