Atomic Structure
Electrons and Ions
Chemical Compounds
Chemical Equations
100
The three particles which make up an atom are:
Protons, Neutrons and Electrons
100
For an atom to become an ion, it can ______ or lose electrons.
Gain
100
Compounds formed when electrons are shared are called ...
Covalent
100
How many oxygen are present
2 ZnNO3
6
200
Which particles within an atom add together to give the mass of an atom?
Protons & Neutrons
200
An atom has an electron configuration of 1s2, 2s2 2p4. This would be an atom of...
oxygen
200
Complete this word reaction:
Magnesium + Oxygen ----->
Magnesium Oxide
200
How many Hydrogen are present?
2H2O + H2SO4
6
300
The atomic number is determined by the number of ...
protons
300
What would be the electron configuration (in spdf format) for an atom of Aluminium?
1s2, 2s2, 2p6, 3s2, 3p1
300
Name the following compound:
NO2
Nitrogen Dioxide
300
Balance this Equation
NaOH + H2SO4 -> Na2SO4 + H2O
2 NaOH + H2SO4 -> Na2SO4 + 2 H2O
400
Forms of an element where the atoms have a different number of neutrons are called...
Isotopes
400
What would an atom in Group 7 do to form a stable configuration?
Gain one electron
400
Give the chemical formula of Potassium Sulfate
K2SO4
400
Is this Balanced?
2 KMnO4 + 16 HCl ->2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Yes
500
Name this element
Beryllium
500
What is the electron configuration (in spdf) of an Oxygen Ion (O2-)
1s2, 2s2, 2p6
500
Give the chemical formula of Aluminium Hydroxide
Al(OH)3
500
Balance this Equation
Fe + Cl2 = FeCl3
2 Fe + 3 Cl2 = 2 FeCl3