CHEMICAL BONDING

Question 1

____________ is the attractive force that holds two atoms together in a complex unit.

Answer 1

Chemical bond

Question 2

The nature of chemical reaction is closely linked to _________________

Answer 2

eletron configuration

Question 3

____________________ occur whenever atoms combine with or dissociate from other atoms

Answer 3

Chemical reaction

Question 4

There are ___ energy levels or electron shells in all.

Answer 4

7

Question 5

the further the _____ is from the nucleus, the higher its ________________.

Answer 5

shell, energy level

Question 6

the closer the _____ is from the nucleus, the lower its ________________.

Answer 6

shell, energy level

Question 7

_______ energy shells can hold more electrons than ________ energy levels.

Answer 7

Higher, lower

Question 8

Maximum number of electrons per shell formula

Answer 8

2(n)^2

Question 9

The outer shell refers to the outer most shell holding electrons. It is also referred to as the ____________.

Answer 9

valence shell

Question 10

Electrons in the outer shell are called ________________.

Answer 10

valence electrons

Question 11

Outermost energy level is complete

Answer 11

Chemically inert

Question 12

Outermost energy level is incomplete

Answer 12

Chemically reactive

Question 13

Types of Chemical Bond

Answer 13

Ionic and Covalent Bond

Question 14

chemical bond formed through the transfer of electrons

Answer 14

ionic bonds

Question 15

compound in which ionic bonds are present

Answer 15

ionic compound

Question 16

Ionic compounds tend to have _______ melting point and are good _______ of electricity when in a molten state.

Answer 16

high, conductors

Question 17

chemical bond formed through the sharing of electrons

Answer 17

covalent bond

Question 18

compound in which covalent bonds are present

Answer 18

molecular compound

Question 19

____________ have lower melting points and can be gas, liquid, and solid.

Answer 19

Molecular compounds

Question 20

Covalent bonding generally happens between _____.

Answer 20

nonmetals

Question 21

An ionic bond is formed between a _______ and a __________________.

Answer 21

metal, non-metal

Question 22

Non-metals(-ve ion) are “stronger” than the metal(+ve ion) and can get electrons very easily from the ______.

Answer 22

metal

Question 23

A _________ symbol is the chemical symbol of an element surrounded by dots equal in number to the number of valence electrons present in atoms of the element.

Answer 23

Lewis

Question 24

named in honor of the American chemist ________________, who first introduced them.

Answer 24

Gilbert Newton

Question 25

also frequently called electron dot structures.

Answer 25

LEWIS STRUCTURE

Question 26

The _____________ refers to an important principle that the atoms which have bonded share eight outer electrons.

Answer 26

octet rule

Question 27

The octet rule states that the atoms like to have ________ electrons only in their full outer shells.

Answer 27

eight

Question 28

- Special type of bond - extremely weak bonds - formed when an H atom bound to N, O, F

Answer 28

HYDROGEN BOND

Question 29

___________ a result of an unequal sharing of the electrons in a bond.

Answer 29

Polar Covalent Bond

Question 30

____________ is a bond in which the electron pair is shared equally.

Answer 30

Non-Polar Covalent Bond

Question 31

If two atoms have an electronegativity difference of 0.4 or less, they form a ____________ bond.

Answer 31

non-polar covalent

Question 32

If two atoms have an electronegativity difference between 0.5 and 1.7, they form a ______________ bond.

Answer 32

polar covalent

Question 33

3. If two atoms have an electronegativity difference of more than 1.8, they form an __________.

Answer 33

ionic bond