Atomic structure (1)

Question 1

Relative mass of a proton ?

Answer 1

0.9986

Question 2

Relative charge of a proton ?

Answer 2

+1

Question 3

Relative mass of a nuetron ?

Answer 3

1.0000

Question 4

Relative charge of a netron ?

Answer 4

0

Question 5

Relative mass of an electron ?

Answer 5

0.0005

Question 6

Relative charge of electrons ?

Answer 6

-1

Question 7

When were neutrons discovered ?

Answer 7

1932

Question 8

When were protons discovered ?

Answer 8

1911

Question 9

When were electrons discovered ?

Answer 9

1896

Question 10

What does the atomic number rappresent?

Answer 10

number of protons

Question 11

What does the mass number rappresent ?

Answer 11

Number of protons and neutrons

Question 12

Where is the mass number in the perioct table ?

Answer 12

at the top

Question 13

Where is the atomic number found ?

Answer 13

at the bottom

Question 14

What is an ion ?

Answer 14

Atom with overall electric charge

Question 15

how many electrons are found in protons and electrons in a neutral ion?

Answer 15

they’re the same

Question 16

Elcetrons configuration - what are the energy levels

Answer 16

1,2,3….

Question 17

What are the sublavels named ?

Answer 17

s,p,d,f

Question 18

What are orbitals?

Answer 18

location of electrons around an atom

Question 19

How do electrons fill orbitals ?

Answer 19

electrons fill the low energy orbitals (closest to nucleus)
then they fill high energy orbitals (far from nucleus)

Question 20

How are ions formed ?

Answer 20

When an atom becomes charged by gaining or loosing electrons