Answer:
its c i got right on test
Explanation:
B - CALCIUM
Hopes it helps
it has less tightly bound electrons, is able to lose electron easily as compare to metal B at it has 4 unpaired electron in 3d sub-shell.
wedging
ice or frost wedging
A
CH3CH2COOH- Propanoic Acid
Manganese
At Mass - No neutrons = Atomic Number = #protons in nucleus
47 - 22 = 25 => At. No. 25 is Manganese (Mn)
