What is the significance of the rows (periods) in the periodic table?
Year 9 - Exploring Chemical Reactions and Trends (level 10)

Quiz
•
Science
•
10th Grade
•
Hard
Emily Hoysted
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They indicate the number of valence electrons.
They indicate the number of electron shells.
They indicate the atomic mass.
They indicate the reactivity of elements.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of metals in the periodic table?
High electronegativity
Poor conductivity
Malleability
Brittle nature
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Synthesis
Decomposition
Displacement
Combustion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following factors does NOT affect the rate of a chemical reaction?
Temperature
Colour of reactants
Concentration
Surface area
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the trend in atomic size as you move down a group in the periodic table?
It decreases.
It remains the same.
It increases.
It fluctuates.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following reactions is exothermic?
Melting ice
Photosynthesis
Combustion of petrol
Evaporation of water
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of increasing the concentration of reactants on the rate of reaction?
It decreases the rate.
It has no effect.
It increases the rate.
It stops the reaction.
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