Answer:
they are named like electron group geometry
Explanation:
do not know how to type a Lewis dot diagram
Answer:
matter is anything that occupies space and mass
Strontium atom loses 2 electrons to become an ion with 2 electrons lesser than its atom. Your answer is C.
Elements were grouped on their properties and behaviors, so hydrogen resides with the alkali metals in group 1 (1A) because it has only 1 valence electron, like the metals in that group.
