Which is a property of all atoms? a. More electrons than protons
b. A nucleus with a positive charge
c. A positively charged electron cloud
d. Same number of protons as neutrons

There are main groups in the modern periodic table of elements

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

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