3.2 - Atomic structure

Question 1

what three subatomic particles does an atom contain

Answer 1

proton
neutron
electron

Question 2

what is the relative mass of a proton

Answer 2

1

Question 3

what is the relative charge of a proton

Answer 3

+1

Question 4

what is the relative mass of a neutron

Answer 4

1

Question 5

what is the relative charge of a neutron

Answer 5

0

Question 6

what is the relative mass of an electron

Answer 6

0.0005

Question 7

what is the relative charge of an electron

Answer 7

-1

Question 8

what is found in the nucleus of an atom

Answer 8

protons and neutrons

Question 9

what are found around the nucleus of an atom

Answer 9

electron shells

Question 10

where are electron shells found

Answer 10

in energy levels (shells) around the nucleus

Question 11

what is an atomic number

Answer 11

the total number of protons

Question 12

what is the mass number

Answer 12

the total number of protons and neutrons

Question 13

what does numbers of electrons equal

Answer 13

the number of protons - atoms are neutral

Question 14

what are isotopes

Answer 14

atoms with the same number of protons but different number of neutrons

Question 15

how do isotopes behave

Answer 15

identically - they have the same number of electrons

Question 16

what is relative atomic mass

Answer 16

the average mass of an atom of an element, taking into accounts the different masses of each isotope

Question 17

what is RAM calculated using

Answer 17

the mass numbers of each isotope and their %-abundances

Question 18

what is the formula for RAM

Answer 18

(%abundance/100 x mass) + (%abundance/100 x mass)

Question 19

what does the electronic configuration of an atom show

Answer 19

how electrons are arranged into energy levels /shells

Question 20

what is the maximum capacity of electrons in the 1st shell

Answer 20

2

Question 21

what is the maximum capacity of electrons in the 2nd shell

Answer 21

8

Question 22

what is the maximum capacity of the 3rd shell

Answer 22

8 - (actually 18)

Question 23

what is the maximum capacity in the 4th shell

Answer 23

2 (actually more)

Question 24

what does the element’s location on the periodic table also tell you about

Answer 24

its electron configuration

Question 25

what does the row/ period of an element tell you

Answer 25

number of occupied electron shells

Question 26

what does the column/ group of an element tell you

Answer 26

the number of electrons in the outer shells