Atoms
Radioactivity
Chemical Equations
Periodic Table
100
What subatomic particle is on the outside of the nucleus?
Electron/s
100
Which of the following is an isotope of Carbon?
Carbon-12 or Carbon-14
Carbon - 14
100
What are the 2 components of a chemical reaction?
Reactants and Products
100
What is the first element of the periodic table?
Hydrogen
200
What 2 subatomic particles make up the nucleus of an atom?
Protons and Neutrons
200
In some atoms the neutrons and protons in the nucleus are not held together strongly. This makes them __________ .
Unstable/ Radioactive
200
Name the reactants of the following chemical reaction:
Magnesium oxide reacts with water to form magnesium hydroxide.
Magnesium Oxide + water
200
What is the group of gases called on the right hand side of the periodic table?
Noble Gases
300
What are the 3 subatomic particles of an atom
Protons. Neutrons and Electrons
300
What are the 3 types of nuclear radiation?
Alpha Particles
Beta Particles
Gamma Rays
300
Name 3 signs that a chemical reaction has occured
Smell/odour
Colour
Gas
New substance (solid or liquid)
300
How many elements are there on the periodic table of elements?
118
400
What are the the subatomic particles and their associated charges?
Protons (+)
Neutrons (0)
Electrons (-)
400
Define an isotope
Atoms of the same element with the same atomic numbers but different mass numbers are called isotopes.
400
Name the reactants and produces of the following chemical reactions:
Copper and silver nitrate react to make copper nitrate and silver.
Reactants:
Copper + silver nitrate
Products:
Copper nitrate and silver
400
What element group does Lithium belong to?
Alkali Metals
500
Who discovered the atom?
John Dalton
500
What is the half life of Strontium-90
28 years
500
Write the correct worded equation for the following chemical reaction:
Sodium hydrogen carbonate reacts with sulfuric acid to form sodium sulfate, water and carbon dioxide.
Sodium hydrogen carbonate + sulfuric acid --> sodium sulfate +water + carbon dioxide.
500
Carbon belongs to which group of elements in the periodic table?
Reactive non-metals