c-3 o+2 sn+4 al-3
1. Iron (Fe) 2. Copper (Cu) 3. Aluminum (Al) 4. Tin (Sn)
Fe, Si, Au, Cr, Al, Ni, S, Sn, N, C
Sn=====
Such substances are semi-metals as Zn,Sn and Al , and their oxides, such substances are known as Amphoteric.
The chemical symbol of tin is Sn
Formula: Sn(HCO3)4
Brass is the alloy between copper and zinc; sometimes other minor alloying elements are added (Pb, Sn, Fe, Al, As, Mn).
55 Basically the sum of al integers from 1 to n is Sn=(n²+n)/2 (Think why is this number always an integer!)
Sn is tin.
jg
Sn, because it is metal