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Atoms and Periodic table
Atoms and Periodic table
20 terms
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#atom and #periodic table #year9 #science
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1
Which one of the following is not a property of metal in general?
Low melting point
Ductile
Lustrous
Good conductor
2
Which one of the metal group has the highest reactivity?
Basic metal
Earth metal
Semi-metal
Alkali metal
3
How many colours of M&M do we need to create a model of atom (excluding hydrogen)?
2
4
3
1
4
What is the chemical name for lemon juice?
Acetic acid
Sulfuric acid
Hydrocloride acid
Citric acid
5
Which one of the following is a compound?
Air
Blood
Carbon dioxide
Silver
6
What is the make up of an atom?
Electron, proton and neutron.
Proton and neutron.
Positive and negative charges.
7
Which one of the following is true?
An atom is the smallest unit of ordinary matter.
Atoms do not have properties of any kind.
Atoms share the same properties of the chemical element.
SIngle atom is visible to human eye.
8
Which one of the following is negatively charged?
Electron
Neutron
Atom
Proton
9
How do we calculate the mass number of an atom?
Mass number = No. of proton
Mass nuber = No. of proton + No. of neutron
Mass number = No. of neutron
Mass number = No. of proton + No. of electron
10
Which group is commonly used in neon lights?
Noble gas
Non-metal
Halogen
Semi-metal
11
What does a column in periodic table repersent?
Group
Period
Family
12
Which one of the following groups has elements that are all radioactive?
Non-metals
Alkali metal
Transition metals
Actinides
13
How are elements arranged in periodic table?
By the number of electron they have.
By their element name.
By their atomic number.
By their mass number.
14
Which one of the groups has the least reactivity?
Alkali metal
Noble gas
Halogen
Semi-metal
15
Who created the first atom model, and how does it look like?
Dalton - Billiard Ball model
J.J. Thomson - Billiard Ball model
Dalton - Plum Pudding model
J.J. Thomson - Plum Pudding model
16
Which group has the properties from both metal and non-metal group?
Alkali metals
Transition metals
Metalloids
Semi-metals
17
Which one of the following is not a good material for jewellery making?
Lead
Magneisum
Gold
Silver
18
What does a row in periodic table represent?
Family
Group
Ladder
Period
19
If an atom has an atomic number of 8, and a mass number of 16, how many neutron does it have?
5
6
8
10
20
What is the biggest group in periodic table?
Halogen
Noble gas
Transition metals
Actinides
