Answer:
that not of i grade sorry
Explanation:
Answer:
Hmm
Explanation:
Elemental antimony adults a layer structure (space group R3m No.166) in which layers consist of fused, ruffled, six-membered rings. The nearest and the next nearest neighbors form and irregular octahedral complex, with the 3 atoms in each layer slightly closer than 3 atoms in the next
Electric configuration : 4d^10 5s^2 5p^3
Answer:
One atom lf helium has a mass of 4 u
Know that 1 u =1.66. 10-24g
Answer:
2Atoms
Explanation:
in 
There exist 2 atoms of nitrogen, 4 atoms of hydrogen and three atoms of oxygen. so the answer is 2atoms