hydrogen 1 i would assume..
the atomic weight fo hydrogen is 1.00794, so the 2 and 3 must have very little to no effect on the atomic weight, so 1 would be like 99+% and the …other two would be like >.5% each.(MORE)
If the sum of all a number's factors (apart from itself) is equal to the original number, then the number is perfect. If this sum is less than the number, it is deficient. If …the sum is more than the number, it is abundant. The factors of 70 are: 1, 2, 5, 7, 10, 14, 35 and 70. 1+2+5+7+10+14+35 = 74. Thus the number 70 is abundant. (MORE)