Chemistry (Block test)

Question 1

Sodium flouride is ionic compound.describe how sodium atom and flouride atom reacts to form sodium ion and fluoride ion

Question 2

Why is sodium fluoride is able to conduct electricity when molten but not when solid

Question 3

Explain in terms of electronic configuration how Mg +O atoms react to form ionic compound
INCLUDE DESCRIPTION OF STRUCTURE OF SOLID MgO

Question 4

Formulae of Ca(NO3)2

Question 5

Covalent bond

Question 6

Why is chlorine a gas at room temp and not a liquid

Question 7

Copper atom has diameter of 0.256nm
Whats the size in metres

Question 8

Finish sentence
The mass of an electron is

Question 9

Atomic No is 8
mass No is 17
Describe No pf subatomic particles in nucleus

Question 10

Sulfur and O are in Group 6
Explain in terms of electronic configuration why they are in Group 6

Question 11

Atom of Phosphorous contains 15 electrons
describe how they are arranged

Question 12

7.59% of lithium 6
92.41% of lithium 7
Calculate relative atomic mass (2dp)