Elements - Mixtures - Compounds

Question 1

What’s the relative mass of an electron?

Answer 1

1/2000

Question 2

What’s the relative charge of an electron?

Answer 2

-1

Question 3

What’s the relative mass of a proton

Answer 3

1

Question 4

What’s the relative charge of a proton

Answer 4

+1

Question 5

What’s the relative mass of a neutron

Answer 5

1

Question 6

What’s the relative charge of a neutron

Answer 6

0

Question 7

What does the atomic number also mean?

Answer 7

How many electrons there is

Question 8

What does the mass number also =

Answer 8

The total number of everything.

Atomic number - mass number = number of neutrons

Question 9

What’s the radius of an atom

Answer 9

1x10 to the - 10

Question 10

How do you calculate the relative atomic mass

Answer 10

( Mass A x % abundance A ) + ( Mass B x % abundance B )

Question 11

Give an example of a non-metal

Answer 11

Argon

Question 12

Why’s it called the periodic table?

Answer 12

Because it’s arranges in groups and periods. Elements are in order of increasing atomic number.

Question 13

What was the ‘pudding’ of the plumb pudding model

Answer 13

Positive charge

Question 14

Who created the periodic table

Answer 14

Dmitri Mendeleev

Question 15

What is the structure and bonding of 2 non-metals

Answer 15

Simple - covalent

Properties:
Low my / bp
Poor condition in liquid + solid

Question 16

What’s the structure and bonding of a metal and a non-metal

Answer 16

Giant - ionic

Properties:
High mp / bp
X conduction in solid
✅ conduction in water

Question 17

What’s the structure and bonding or 2 metals

Answer 17

Giant - metallic

Properties
High mp / bp
✅ conduction in solid and liquid

Question 18

What’s special about graphite or diamond

Answer 18

It’s giant covalent

Properties
High mp / bp
X conduction in anything ( all electrons taken )