Chemical Bonding

Question 0

Nucleus

Answer 0

Has positive protons and nuetral nuetrons

Question 1

Atom

Answer 1

Smallest part of an element

Question 2

Negative electrons

Answer 2

Circle the nucleas in the shells

Question 3

Atomic number

Answer 3

Number of protons

Question 4

Mass number

Answer 4

Number of protons and neutrons

Question 5

Compound

Answer 5

Two or more atoms of different elements have a chemical bonding joining them together

Question 6

Octet rule

Answer 6

Atoms will bond together so that each atom attains an electron arrangment with 8 electrons in its outer shell

Question 7

Ionic bonding

Answer 7

When one atom gives electrons and the other atoms takes electrons to get a full outer shell

Question 8

Covalent bonding

Answer 8

Is when both atoms share electrons to get a full outer shell

Question 9

Single covalent bonds

Answer 9

They occur when atoms shar on pair if electrons

Question 10

Double covalent bond

Answer 10

Is formed when atoms share two pairs if electrons

Question 11

Name the first ten elements of the periodic table

Answer 11

Hydrogen, helium, lithium, beryllium, carbon, boron, nitrogen, oxygen, fluorine and neon

Question 12

What are the next ten elements of the periodic table

Answer 12

Sodium, magnesium, aluminum,silicon, phosphorus, sulfur, chlorine, argon, potassium and calcium

Question 13

Hydrogen

Answer 13

H

Question 14

Helium

Answer 14

He

Question 15

Lithium

Answer 15

Li

Question 16

Beryllium

Answer 16

Be

Question 17

Boron

Answer 17

B

Question 18

Carbon

Answer 18

C

Question 19

Nitrogen

Answer 19

N

Question 20

Oxygen

Answer 20

O

Question 21

Fluorine

Answer 21

F

Question 22

Neon

Answer 22

Ne

Question 23

Sodium

Answer 23

Na

Question 24

Magnesium

Answer 24

Mg

Question 25

Aluminium

Answer 25

Al

Question 26

Silicon

Answer 26

Si

Question 27

Phosphorus

Answer 27

P

Question 28

Sulfur

Answer 28

S

Question 29

Chlorine

Answer 29

Cl

Question 30

Argon.

Answer 30

Ar

Question 31

Potassium

Answer 31

K

Question 32

Calcium

Answer 32

Ca

Question 33

Two ionic bonding atoms

Answer 33

``` Sodium atom(2,8,1)+chlorine atom (2,8,7) = salt and Na+ Cl- Magnesium atom(2,8,2)+Oxygen atom(2,6)=full outer shell Mg+ O- ```

Question 34

Name two covalent bonding atoms

Answer 34

``` 2 Hydrogen atoms(1each)+1Oxygen atom(2,4)= water and a full outer shell(H2O) 4Hydrohen atoms(1each)+1Carbon atom(2,4)= methane a full outer shell (CH4) ```

Question 35

The differences between Ionic and Covalent compounds

Answer 35

Ionic. Covalent Consists crystal lattices. Consists of separate molecules Usually crystalline solids. Usually liquids or gases Usually soluble in water. Low melting&boiling points Conducts electricity when melted. Doesn't conduct electricity