Answer:
The magnesium ion is much smaller than the magnesium atom because magnesium atom contains more electrons as compared to magnesium ion. Explanation: ... Whereas when an atom tends to lose an electron then it acquires a positive charge and size of the atom tends to increase.
3. The difference between the potential energy of the products and the potential energy of reactants.
Explanation:
The correct answer would be a because the line hasn't reached 1.5 yet (longest line between each numbers represent .5)
1. Noble gases are used protect materials and prevent chemical reactions.
2. Groups
3. Rows
