Chapter 8

Question 1

What is the relative mass of a proton

Answer 1

1

Question 2

What is the relative massof a Neutron

Answer 2

1

Question 3

What is the relative mass of an Electron

Answer 3

1/1840 or round down to nothing

Question 4

What is the relative charge of a proton

Answer 4

1+

Question 5

What is the relative charge of a Neutron

Answer 5

0

Question 6

What is the relative charge of an electron

Answer 6

1-

Question 7

Where are the sub-atomic particles found in an atom?

Answer 7

Proton and Neutron - located in nucleus of atom
Electron - moves around the nucleus

Question 8

What is PASM

Answer 8

P - proton / atomic numbic (no. of protons)
AS - atomic symbol (element)
M - **nucleon / mass no. ** (total no. of proton and nucleon)
11
Na
23

Question 9

What is Nuclide Notation?

Answer 9

Inverted version of PASM
23
Na
11

Question 10

What is a valence shell

Answer 10

outermost electron shell of atom

Question 10

What are valence electrons?

Answer 10

found in valence shell

Question 11

What are isotopes

Answer 11

atoms of same element that have the same proton and electron (neutral charge) but have different number of neutrons

Question 12

How and why do atoms become ion

Answer 12

Atoms either lose or gain electrons to get a stable octet configuration or noble gas configuration (8 valence electrons)

Question 13

What do you call atoms that lose electrons?

Answer 13

cations (positively-charged, usually metals)

Question 14

What do you call atoms that gain electrons?

Answer 14

anions (negatively-charged, usualy metals)

Question 15

What are the types of chemical bonding?

Answer 15

ionic and covalent bonding

Question 16

What is covalent bonding

Answer 16

when atoms share electrons to get octet configuration (8 valence electrons)

Question 17

What is ionic bonding

Answer 17

when atoms gain or lose electrons to get octet configuration