Random Questions

Question 1

Anion ions are negative ions…. that have more …. than ….

Answer 1

Electrons than protons

Question 2

Cation ions ate positive ions which means they have more …… compared to …….

Answer 2

protons compared to electrons

Question 3

Noble gas is in group …..
It has full electrons on the ……shell
We find the structure by measuring from proton numbers

Answer 3

8

Outer most

Question 4

Noble gases gave … valence electrons

Answer 4

8

Question 5

Halogens are group …

Answer 5

7

Question 6

Halogens have.. valence electrons

Answer 6

7

Question 7

Group one are ……. with the valency of ….. in the outer most shell

Answer 7

Alkali metals

1

Question 8

Nucleon number is the total of ……. and ……..

Answer 8

protons and neutrons

Question 9

Nucleon number is also called …..

Answer 9

Mass number

Question 10

Group 2 are …… metals

Answer 10

Alkali earth metals

Question 11

Group 4 are

Answer 11

metalloids

Question 12

Acid is due to the presence of hydrogen . hydrogen has …. proton

Answer 12

1

Question 13

Define the relative atomic mas of elements

Answer 13

It is compared to carbon 12 atoms …..carbon with nuclear number which add up to 12 (protons +neutron )

Question 14

Chlorine gas is … in colour

Answer 14

green

Question 15

The name of an atom which has diatonic molecules and is a gas st room temperature and pressure

Answer 15

Fluorine

Question 16

Hydrogen gas has the highest diffusion. Why?

Answer 16

Because it has the lightest relative mass

Question 17

Compounds found in clean dry air

Answer 17

Water and carbon

Question 18

Nitrogen and oxygen can be separated from liquid air .The process is called….

Answer 18

Fractional distillation

Question 19

Nitrogen reacts with nitrogen to form ammonia in an industrial process called … .

Answer 19

Haber

Question 20

Stat the condition used in the have process ….include units
Temperature ….
Pressure…

Answer 20

450 degrees Celsius

200atm