Question

[SHOW WORK] will give brainliest! what is the rounded atomic mass of
1.Aluminum, 2.Calcium, 3.Sodium, 4.Potassium, 5.Nitrogen, 6.Silicon, 7.Iron, 8.Hydrogen ​​

Answer 1

Al = 26.981539u which rounds up to 27u

Ca= 40.078u which sounds to 40u

Sodium= 22.989769 which rounds up to 23u

Potassium= 39.0983u which rounds to 39u

Nitrogen= 14.0067u which rounds to 14u

Silicon= 28.0855 u which rounds to 28u

Iron= 55.845 u which rounds to 56u

Hydrogen= 1.00784 u which rounds to 1

I hope this helps!!