Answer:
H, He. 2, Li, Be, B, C, N, O, F, Ne. 3, Na, Mg, Al, Si, P, S, Cl, Ar. 4, K, Ca, Sc, Ti ... 7, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lr ... (Atomic mass is also referred to as atomic weight, but the term "mass" is more ... One molecule of water (H2O) would weigh 18.02 amu (2×1.00797 amu for H + ... 6, C, Carbon, 12.011.
Explanation:
