WorksheetsChemistry Pre-Test
Total questions: 25
Worksheet time: 25mins
an atom with atomic number 6 would have how many protons
6
12
3
cannot be determined
How many valence electrons does Potassium Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
Which item on this element square is the chemical symbol?
Copper
29
Cu
63.546
How many valence electrons does Silicon Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
Made up of only 1 type of atom
Compound
Molecule
Element
Mixture
Which of these samples shown best represents an element?
A
B
C
D
This shows a table salt molecule. What is it?
compound
element
mixture
An element is
Made up of different types of atoms
Made up of the same type of atoms
none of the above
all of the above
This picture represents which of the following?
element
compound
Q1. What is the atomic number of an element?
A) The number of protons
B) The number of neutrons
C) The Mass Number
D) The number of valence electrons
The horizontal (side to side) rows in the Periodic Table are called
groups
families
periods
atomic numbers
Which of the following elements is a non-metal in group 14?
Carbon (C)
Silicon (Si)
Tin (Sn)
Lead (Pb)
Metals are located on the
________ side of the
Periodic Table.
ZIG-ZAG
LEFT
RIGHT
BOTTOM
Find the element on Period 3 and Group 17. What is
this element’s chemical symbol?
F
Br
Cl
I
Particles in an atom that are neutral and have no charge are
negatrons
electrons
neutrons
protons
What is the chemical symbol for Gold?
Au
Ag
Pb
Fe
Which of the following is a noble gas?
Oxygen
Nitrogen
Helium
Hydrogen
What is the pH level of pure water at 25°C?
7
5
9
3
Which element is known as the 'King of Chemicals'?
Sulfuric Acid
Hydrochloric Acid
Nitric Acid
Acetic Acid
What is the main gas found in the air we breathe?
Oxygen
Carbon Dioxide
Nitrogen
Hydrogen
What is the process of converting a solid directly into a gas called?
Melting
Sublimation
Condensation
Evaporation
