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The atomic number of the element which does not usually form compounds because its outermost shell is full is: 8 16 18 19 20
3.The outermost shell of all atoms with two or more electron shells will not have more than 8 electrons
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User: The atomic number of the element which does not usually form compounds because its outermost shell is full is: 8 16 18 19 20

Weegy: 3.The outermost shell of all atoms with two or more electron shells will not have more than 8 electrons
iamhanifah|Points 850|

User: Each period of the periodic table ends with: alkali metals such as Na, K, Li, and Cs Period 7 elements Group VIIIA elements the oxygen family seven orbital shells

Weegy: Group VIIIA elements
selymi|Points 8932|

User: Which element in Period 4 is the most chemically active non-metal? Se Br Ge As

User: The number of positive charges in the nucleus of an atom is equal to: its mass number its atomic number Avogadro's number its atomic mass





Weegy: atomic number
Expert answered|reynaldo009|Points 210|

User: An atom is most stable when it has eight electrons in its outermost energy level. This is a statement of the octave octet valence balance rule.

Weegy: what is the question
Expert answered|reynaldo009|Points 210|

User: who applied quantum theory to atoms?

Weegy: Niels Bohr
Expert answered|reynaldo009|Points 210|

User: who did research on radioactivity?

Weegy: Marie Curie
Expert answered|reynaldo009|Points 210|

User: who discovered electron?

Weegy: Sir John Joseph Thomson
Expert answered|reynaldo009|Points 210|

User: who applied quantum theory to atoms?

Weegy: Niels Bohr



User: who expressed particles by wave equation?

Weegy: Schrödinger
Expert answered|reynaldo009|Points 210|

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Asked 9/28/2012 11:48:17 AM
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