1. An atom has 57 neutrons and 42 protons. How many electrons will this atom have if it neutral?
57
44
42
40

What is the study of how matter and energy interact? a. biology b. physics c. planetary science d. chemistry

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.