Chemistry study guide

How many unshared pairs of electrons will a trigonal pyramidal molecule have

1

What is the measure of a tetrahedral bond angle

109.5 degrees

What two types of atoms make a covalent bond

2 nonmetals

How many valence electrons does nitrogen

5

How many electrons are shared in a triple bond

6

How many valence electrons does chlorine have

7

A lone pair is defined as

A pair of non bonding electrons

Which of the following shapes has unshared pairs of electrons on the central atom

Bent

Which of the following molecular shapes would have a bond angle of 180 degrees

Linear

Which of the following correctly matches a compound with its molecular geometry

Methane (CH4): tetrahedral

What is the VSEPR theory used to predict

Molecular shape

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible

Pairs of valence electrons

SiCl4 has what shape

Tetrahedral

What is the structure of an ammonia (NH3) molecule

Trigonal pyramidal

How are covalent bonds explained

When the atom shares an electron with an another atom

VSEPR theory stands for

valence shell electron pair repulsion theory