Answer:
4.Electronic configuration
Explanation:
The number of digits in the electronic configuration tells you how many shells are in an atom.
Answer:Sound waves are longitudinal waves that travel through a medium like air or water. When we think about sound, we often think about how loud it is (amplitude, or intensity) and its pitch (frequency).
Explanation:
D because these are the biggest particles, and are therefore, the most dense.
The answer c) A- Cell membrane because it selects what molecules enter/exit the cell
Answer: the number of circles in the electronic configuration of an element is represented in the periodic table as the period number that element is situated in. the number of electrons in the outermost shell of an element is represented in the periodic table as the group number that element is situated in.
Explanation: hope it helps :)