Answer:
change of color
Explanation:
when a substance undergoes a change of color it is an indication that it was chemical
Top period will have the atom with larger radius.
Ionic charge = +4
To answer this we look only at the protons and electrons. Because there are 4 more protons than electrons we know that this ion has 4 less electrons than it would need to have to have a neutral charge. Therefore, the ionic charge is +4
The answer is: each compound is composed of one type of molecule.
The answer would be 0.6 moles
