How many electrons are in the highest occupied energy level of a nuetral silicon atom?
a). 4
b). 14
c). 12
d). 8

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium

How many grams of sodium chloride are in 250ml of a 2.5m naci solution