Explanation:
Manganese, Mn, 25, 25, 55
Sodium, Na, 11, 12, 11, 23
Bromine, Br, 35, 35, 80
Yttrium, Y, 39, 39, 50
Arsenic, As, 33, 42, 33
Actinium, 89, 89, 138, 89
Na, 11, 11, 12, 11, 23
Tantalum, 73, 73, 108, 73, 181
Lead, Pb, 82, 82, 125, 82, 209
Mercury, Hg, 80, 121, 80, 201
Osmium, Os, 76, 114, 76, 190
Radon, Rn, 86, 136, 86
Please give Brainlist, I spent so much time doing this
