Chapter 2 Lecture 2 - Molecules, Chemical Bonds

Question 1

Molecule

Answer 1

2 or more atoms bonded.

Question 2

Why are molecules formed (most of the time)

Answer 2

To fulfill the octet rule

Question 3

Compound

Answer 3

Molecule with 2 or more elements

Question 4

Chemical Bond

Answer 4

Any force that attracts one atom to another

Question 5

Ionic Bond

Answer 5

Created through the gain and loss of electrons, attraction between an and cations

Question 6

What is weaker, an ionic or covalent bond?

Answer 6

Ionic

Question 7

Covalent Bond

Answer 7

Sharing of at least two electrons

Question 8

Single Covalent Bond

Answer 8

Sharing 1 pair of electrons

Question 9

Double Covalent Bond

Answer 9

2 pairs of electrons

Question 10

Electronegativity

Answer 10

When electrons are not shared equally in a covalent bond

Question 11

Does electronegativity occur with different or the same kind of atoms?

Answer 11

Different

Question 12

How does electronegativity work?

Answer 12

When one atom is bigger than the other in a covalent bond, the bigger one gets the electrons for a longer amount of time because more protons = greater attraction to electrons, becomes more overall negative

Question 13

Hydrogen Bond

Answer 13

slight attraction between positive H and negative O

Question 14

Van der Waals forces

Answer 14

Weak, brief attractions between neutral atoms because the electron cloud of one atom gets very close to the nucleus of another