Question 2 unsaved a neutral atom has an atomic number of 20 and a mass number of 42. how many electrons does the atom have?

Atomic number refers to the number of protons an atom has. Since this atom has 20 protons in the nucleus, the charge of the nucleus is +20 (neutrons, also in the nucleus, contribute zero charge). Thus, for the atom to be neutral, its electrons must balance the +20 charge of the nucleus, so it must have 20 electrons.

passed in september 1935, these laws are known as nuremberg laws.   they forbid jews from marrying but not directly forced them to divorce aryans. what is most noticeable is the fact that the jews were defranchised, meaning by this that they were not expected to have any civil rights, including the right to vote. the right answer is deprived of the right to vote.

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890