What does the term 'Atom' refer to in chemistry?Group of answer choicesA type of model used to represent molecular structures.A combination of two or more elements chemically bonded together.The smallest unit of an element that maintains the chemical properties of that element.The smallest particle of a compound that retains its chemical properties.

Which of the following best defines a 'Molecule'?Group of answer choicesA single type of atom.The smallest unit of a compound that can exist while retaining the chemical properties of the compound.A combination of different compounds.A type of physical model used in chemistry classes

Recall the definition of a chemical element.A substance made out of carbonA mixture of different types of atomsA substance made up of only one type of atomAny substance in which the atoms are too small to seeI'm not sure

An atom is ... The basic building block of all matter.1The advanced building block of no matter.2The advanced building block of all matter.3The basic building block of some matter.

Describe in your own words the structure of an atom.

Which statement is part of the currently accepted atomic model?A.An atom is a positively charged ball with electrons scattered throughout.B.Atoms are the smallest particles of matter and cannot be divided.C.An atom is made up of electron clouds with different energy levels that surround a nucleus.D.An atom is made up of a nucleus surrounded by electrons that travel in orbits.