Question

what is the estimated value of 38+70-55​

Answer 1

Answer:

what is the difference between atomic mass and atomic number..??

Step-by-step explanation:

Atomic mass is associated with the number of neutrons and protons that are present in a particular nucleus of an element. Atomic number is usually the number of protons present in an element's nucleus. It is the average weight of an element. It is the total number of nucleons in the atom's nucleus.

Answer 2

$38 + 70 - 55 \\ \\ = 38 + 15 \\ \\ = 53$