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WorksheetsPatterns of chemistry
Total questions: 18
Worksheet time: 10mins
What is the smallest unit of an element that still retains the properties of that element?
nucleus
cell
atom
molecule
Which subatomic particle has a positive charge?
Electron
Neutron
Proton
Photon
In which group of the periodic table are the alkali metals found?
Group 7
Period 3
Transition metals
Group 1
What is the atomic number of carbon?
7
8
5
6
What is the symbol for the element with atomic number 1?
He
H
O
Li
What is the name of the process where a solid changes directly into a gas?
sublimation
melting
condensation
evaporation
What is the pH value of a neutral solution?
7
5
10
8
Which state of matter has a definite shape and volume?
liquid
gas
solid
plasma
What is the chemical formula for hydrochloric acid?
H2O2
HOCl
HCl
H2Cl
What is the name of the group 17 elements in the periodic table?
Transition metals
Alkali metals
Halogens
Noble gases
How many electrons can the second energy level hold?
4
12
16
8
Which element is the most abundant in the Earth's crust?
Hydrogen
Silicon
Aluminum
Oxygen
What is the name of the process where a gas changes directly into a solid?
Sublimation
Condensation
Deposition
Evaporation
What is the formula for the compound sodium chloride?
HCl
CO2
H2O
NaCl
What is the name of the group 2 elements in the periodic table?
Noble gases
Alkaline earth metals
Transition metals
Halogens
What is the state of matter with a definite volume but no definite shape?
gas
solid
plasma
liquid
Modern periodic table is classified based on the (a)
Name the element which is colorless inert gas,Second lightest noble gas, Used to make attention-getting signs and Contains 10 protons.
(a)
