Chemistry of Life Vocab practice

Which of the following describes the basic unit of matter?

• molecule

• proton

• electron

• atom

Which of the following describes a pure substance that consists entirely of one type of atom?

• molecule

• proton

• element

• atom

Which of the following terms describes an atom with a similar number of protons but different number of neutrons?

• molecule

• isotope

• element

• compound

Which of the following terms describes the center of the atom, which contains protons and neutrons?

• proton

• nucleus

• element

• compound

Which of the following terms describes an atom with a positive or negative charge?

• isotope

• nucleus

• element

• ion

Which of the following terms describes subatomic particle that is positively charged and found in the nucleus?

• isotope

• proton

• electron

• neutron

Which of the following terms describes subatomic particle that has NO charge and is found in the nucleus?

• isotope

• proton

• electron

• neutron

Which of the following terms describes subatomic particle that has a negative charge and is found in the space around the nucleus?

• isotope

• proton

• electron

• neutron

Which of the following terms describes Substance formed by the chemical combination of two or more elements in definite proportion?

• compound

• proton

• atom

• mixture

Which of the following terms describes Chemical bond formed when one or more electrons are transferred from one atom to another?

• compound

• hydrogen

• covalent

• ionic