Atomic Structure

Question 1

7
Li. Which is mass and atomic
3

Answer 1

7mass number - electrons/ protons +neutrons

3 atomic number- number of protons

Question 2

Protons - mass , charge , location
Neutron - mass , charge , location
Electron - mass , charge , location

Answer 2

Proton - 1 , +1 , in nucleus
Neutron-1 , 0 , in nucleus
Electron 1/2000 ,-1 , in shells

Question 3

What are isotopes

Answer 3

When an element has a different number of neutrons

Question 4

equations for relative atomic mass

Answer 4

100

Question 5

How is the periodic table arranged

Answer 5

In number of atomic structure

Question 6

What are the similarities of elements in the same period

Answer 6

Same number of shells

Question 7

What are the similarities of elements in the same group

Answer 7

They have the same number of electrons on the outer shell

Question 8

What are noble gasses

Answer 8

Elements in group 8 with full shells

Question 9

What is a mole

Answer 9

• an animal
• a weird brown bump
• the number of particles in a given amount of substance

Question 10

What is the equation for moles , mr and mass

Answer 10

Moles. X. Formula mass

Question 11

Describe an atom

Answer 11

Atoms include a nucleus holding the protons and neutrons and the nucleus is surrounded by electrons on shells

Question 12

How many electrons does the first shell hold

Answer 12

2

Question 13

How many electrons can the second shell etc. hold

Answer 13

8