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Elements
Elements
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Year 8 chemistry: elements
Flashcards
9 cards
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Practice quiz
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Host live
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Questions
9
Answers
1
What is the chemical symbol for potassium?
Po
Ka
K
P
2
What element is in group 7 period 3?
Francium
Chlorine
Fluorine
Bromine
3
Which one of these is a physical change?
Melting of ice
Photosynthesis
Burning magnesium
Sodium in water
4
Which element has the symbol Cu?
Copper
Chromium
Calcium
Carbon
5
What is the change from solid to gas called?
Sublimation
Melting
Evaporation
Condensation
6
How many atoms are there in the formula for magnesium oxide?
3
2
1
4
7
How many atoms are there in the formula of methane?
2
5
3
4
8
Which elements are present in calcium carbonate?
Calcium and carbon
Calcium and oxygen
Calcium and carbon and oxygen
Calcium and carbonate
9
What is the name of the compound formed when magnesium reacts with nitrogen?
Magnesium nitrogen
Magnesium nitride
Magnesium nitrite
Magnesium nitrate
