AS Chemistry - Atomic Structure

HideShow resource information
Define an isotope
Atoms of the same element with a different number of neutrons
1 of 10
Define mass number
Number of protons + neutrons in the nucleus of an atom
2 of 10
Define atomic number
Number of protons in the nucleus of an atom
3 of 10
Define relative atomic mass
The weighted mean mass of an atom of an element when compared to 1/12 of the mass of an atom of C-12
4 of 10
Define relative isotopic mass
The mass of an atom of an isotope when compared with 1/12 of the mass of an atom of C-12
5 of 10
What is the charge and mass of a proton?
Charge = +1 Mass = 1
6 of 10
What is the charge and mass of a neutron?
Charge = 0 Mass = 1
7 of 10
What is the charge and mass of an electron?
Charge = -1 Mass = 1/1836
8 of 10
Explain why isotopes of elements react in the same way in chemical reactions.
isotopes of an element have the same number of outer shell electrons. Only outer shell electrons participate in chemical bonding
9 of 10
How do you work out relative atomic mass?
(mass number x percentage abundance) + (mass number x percentage abundance) etc / 100
10 of 10

Other cards in this set

Card 2

Front

Define mass number

Back

Number of protons + neutrons in the nucleus of an atom

Card 3

Front

Define atomic number

Back

Preview of the front of card 3

Card 4

Front

Define relative atomic mass

Back

Preview of the front of card 4

Card 5

Front

Define relative isotopic mass

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Atomic Structure resources »