Atoms, bonding, and the periodic table quiz

An atom's valence electrons are those electrons that have the (a)   energy.

Atoms tend to stable and nonreactive if they have _ valence electrons

(a)  

In the periodic table, the number of valence electrons in each element _______ from left to right across each period.

The reactivity of a metal depends on how easily is (a)   its valence electrons.

Within each (a)   in the periodic table, elements have similar properties because they have the same number of valence electrons.

The number of _______ _________ in the atom of an element determines its chemical properties.

(a)  

The columns in the periodic table are called (a)   .

An _______ ___ _______ shows the number of valence electrons in an atom in pictoral fashion.

(a)  

The attractive force that holds two atoms together is called a _______ ____.

(a)  

Because it can either lose or share electrons when it combines with other elements, each (a)   has some of the properties of metals and some of the properties of nonmetals.