minhhvokar minhhvokar 23-10-2021 Chemistry contestada 2 hydrogen atoms; 3 helium atoms; 5 oxygen atoms; 6 iron atoms 19 aluminum atoms; 15 phosphorus atoms; 7 sodium atoms B. What do the following spellings indicate: 4Cl; 12 thousand; 17Zn; 2 grams; Three; 8C; 15Al