Asked by Corey
how many protons and nuetrons are contained in the nucleus of each of the following atoms? assuming each atom is uncharged, how many electrons are present?
a. 235/92U
b. 13/6C
c. 57/26Fe
d. 208/82Pb
e. 86/37Rb
f. 41/20Ca
a. 235/92U
b. 13/6C
c. 57/26Fe
d. 208/82Pb
e. 86/37Rb
f. 41/20Ca
Answers
Answered by
DrBob222
I'll do a couple.
U92 means atomic number is 92. So yo have 92 protons and 92 electrons.
235 is the mass number. That is the number of protons + number of neutrons; therefore, 235 = ?? number of neutrons + 92 protons. Thus 235-92 = number of neutrons.
C6-12.
6 protons. 6 electrons. 12-6 = 6 neutrons.
U92 means atomic number is 92. So yo have 92 protons and 92 electrons.
235 is the mass number. That is the number of protons + number of neutrons; therefore, 235 = ?? number of neutrons + 92 protons. Thus 235-92 = number of neutrons.
C6-12.
6 protons. 6 electrons. 12-6 = 6 neutrons.
Answered by
136 56 Ba
56 protons and 80 neutron