Atoms, Bonding, and the Periodic Table Review and Reinforce and Lesson Quiz Answers

electron dot diagram

An ------- shows the number of valence electrons in an atom in pictorial fashion.

Highest

An atom's valence electrons are those electrons that have the _____ energy.

Valence electrons

An element's reactivity is determined by the number of _____ found in an atom of the element.

Eight

Atoms tend to be stable and nonreactive if they have _____ valence electrons.

metaloid

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

7

How many protons does a nitrogen atom have?

5

How many valence electrons does a nitrogen atom have?

Lewis Dot Diagram

In a(n) _____, dots around an element's symbol indicate the number of valence electrons in an atom.

Increases

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

Reactive

Is nitrogen reactive or stable?

Group 15

Neon (Ne), which has an atomic number of 10 is in Group 18 in the periodic table. To which group does nitrogen belong?

chemical bond

The attractive force tat holds two atoms together is called a(n)?

groups

The columns in the periodic table are called?

5

The element directly below nitrogen in the periodic table is phosphorus (P). How many valence electrons does phosphorus have?

Chemical Bond

The force of attraction that holds two atoms together is called a _____.

valence electrons

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

Loses

The reactivity of a metal depends on how easily it _____ its valence electrons.

The properties of Nitrogen would be similar to the properties of Phosphorus, because they are in the same group and have the same number of valence electrons and similar chemical properties.

Will the properties of nitrogen be more similar to the properties of neon or the properties of phosphorus? Explain.

group

With in each---------- in the periodic table, elements have similar properties because they have the same number of valence electrons.