When a molecule loses or gains an electron it becomes an ion.
"If it gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion."
Answer:
1s22s22p6: Ne 1s22s22p63s23p3: P 1s22s22p63s23p64s1: K 1s22s22p63s23p64s23d8: Ni 1s22s22p63s23p64s23d104p65s24d3: Nb
B. A physical combination of two or more different materials.
The formula for chromium iii and sulfate ion is 2+3(1+4)= 2+(3x5)
bromine has more energy levels