Module 2 - C2 - Atoms, Ions and Compounds Flashcards
1
Q
What is the relative mass and charge of a proton, neutron and electron?
A
Proton - 1 - 1
Neutron - 1 - 0
Electron - 1/1836 - -1
2
Q
What are ions and isotopes?
A
Ions - charged particles that have lost electrons (have a positive charge and are cations) or gained electrons ( have a negative charge and are anions).
Isotopes - Atoms of the same element but with a different amount of neutrons
3
Q
Define atomic number, mass number and relative atomic mass
A
atomic number(Z) - number of protons mass number (A) - number of protons + neutrons relative atomic mass - The weighted mass of an atom of an element relative to 1/12th the mass of a Carbon-12 atom
4
Q
Nitrite
A
NO_2 (-)
5
Q
Hydrogencarbonate
A
HCO_3 (-)
6
Q
Manganate (VII)
A
MnO_4 (-)
7
Q
Sulfite
A
SO_3 (-2)
8
Q
Dichromate (VI)
A
Cr_2O_7 (-2)
9
Q
Phosphate
A
PO_4 (-3)
10
Q
Ammonium
A
NH_4 (+)
11
Q
Hydroxide
A
OH (-)
12
Q
Nitrate
A
NO_3 (-)
13
Q
Carbonate
A
CO_3 (-2)
14
Q
Sulfate
A
SO_4 (-2)
