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WorksheetsChemistry
Total questions: 20
Worksheet time: 10mins
When an atom loses an electron, it becomes a
positive ion
negative ion
neutral ion
neutral atom
How does oxygen become an oxide ion?
it loses 2 electrons
it gains 2 electrons
it shares electrons
it releases energy
Valence electrons are found
in the innermost energy level of an atom
in the middle energy levels of an atom
in the outermost energy levels of an atom
Cations
Gain electrons, has an overall positive charge
Lose electrons, has an overall positive charge
Lose electrons, has an overall negative charge
Gain electrons, has an overall negative charge
Anions
Gain electrons, has an overall positive charge
Lose electrons, has an overall positive charge
Lose electrons, has an overall negative charge
Gain electrons, has an overall negative charge
How does calcium become an calcium ion?
it loses 2 electrons
it gains 2 electrons
True or False
Atoms can share electrons
True
False
In a covalent bond, electrons are
Gained
Pulled apart
Shared
In the nucleus
Covalent bonds form between
1. Metal - Non-metal
2. Non-metal - Non-metal
3. Metal - Metalloid
4. Non-metal - Metalloid
1 and 2
2 and 3
3 and 4
2 and 4
In ionic bonds, electrons are
Gained or lost
Shared
Mixed randomly
Negatively charged
Positive ions
Gain electrons
Lose electrons
Negative ions
Gain electrons
Lose electrons
What is the name of this structure
Ethane
Propane
Butane
4-propane
what Is this structure
ethene
ethane
ethanoate
Ethan
A hydrocarbon is made of only
carbon and hydrogen and oxygen
carbon and hydrogen
fluorine and carbon
carbon
What is the chemical formula of an alkene that has 3 carbon atoms?
C3H2
C3H4
C3H6
C3H8
What is the chemical formula of an alkane that has 1 carbon atom?
C1H2
C1H3
C1H4
C1H6
