The period number of an atom indicates how many energy levels (or electron shells) it has. Therefore, the correct answer is:
• how many energy levels it has.
• the ionic charge it forms
the number of valence electrons it has
• how many bonds it will make
• how many energy levels it has
1 answer
The period number of an atom indicates how many energy levels (or electron shells) it has. Therefore, the correct answer is:
• how many energy levels it has.