a- the same number of protons in their nuclei
b- the same number of electrons in their outer energy levels
c-the same number of neutrons in their nuclei
d- all the above
2006-10-07 10:18:33 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
they have same electrons in there energy level. that is B. check the periodic table. if u no how 2 represent an electronic configuration of elements in d same group. u will notice that they have the same no of electrons in the outermost shell. e.g group1. it has 1 electron in the outermost shell of the elements.
2006-10-07 10:28:33 · answer #1 · answered by milkshake 2 · 0⤊ 0⤋
the same number of electrons in their outer energy levels
2006-10-07 10:24:10 · answer #2 · answered by source_of_love_69 3 · 0⤊ 0⤋
b
2006-10-07 10:21:01 · answer #3 · answered by Greg G 5 · 0⤊ 0⤋
(b)
2006-10-07 10:21:34 · answer #4 · answered by atheistforthebirthofjesus 6 · 0⤊ 0⤋