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WorksheetsMatter and atoms (review)
Total questions: 10
Worksheet time: 9mins
Which term describes two or more atoms that are held together by chemical bonds and act as a unit?
atom
compound
molecule
substance
Which term refers to two or more substances that are blended but are not chemically bonded?
compound
element
mixture
molecule
Matter can be classified as two different things what are they?
Mixtures and substances.
Substances and elements.
Elements and mixtures.
Matter and atoms.
What do we call a substance that consists of only one type of atom?
Atom
Element
Compound
Substance
A mixture in which two or more substances are evenly mixed but are not bonded togather is?
A homogeneous mixture.
A heterogeneous mixture.
A mixture.
A solution.
Which term refers to the region surrounding an atoms nucleus where one or more electrons are most likely to be found?
electron cloud
ion
isotope
proton
Which term describes one of two or more atoms of an element having the same number of protons, but a different number of neutrons?
atomic number
ion
isotope
molecule
Because electrons are negatively charged, a neutral aton that has lost an electron has what kind of charge?
positive
negative
neutral
atomic
Which describes the region at the centre of an atom that contains most of the mass of the atom?
proton
nucleus
neutron
electron
Which term refers to matter that can vary in composition?
compound
element
mixture
solvent
