Structure of Matter Quizs

What is matter?

• Anything that has mass and takes up space.

• A substance that can be seen but not touched.

• An object that exists only in theory.

• A form of energy that cannot be measured.

What are molecules?

• Groups of two or more atoms bonded together.

• Single atoms that exist independently.

• Large structures made of multiple molecules.

• Atoms that have lost or gained electrons.

What makes an atom neutral?

• Having the same number of protons (+) as electrons (-).

• Having more protons (+) than electrons (-).

• Having more electrons (-) than protons (+).

• Having an unequal number of neutrons and protons.

What is atomic number?

• The number of protons in the nucleus of an atom.

• The total number of electrons in an atom.

• The sum of neutrons and protons in an atom.

• The number of isotopes of an element.

What is a neutron?

• A positively charged particle found in the nucleus of an atom.

• A neutral particle found in the nucleus of an atom.

• A negatively charged particle that orbits the nucleus of an atom.

• A particle that is responsible for the chemical properties of an atom.

What is a proton?

• A negatively charged particle found in the nucleus of an atom.

• A positively charged particle found in the nucleus of an atom.

• A neutral particle found in the nucleus of an atom.

• A positively charged particle that orbits the nucleus of an atom.

What determines the atomic number of an element?

• The number of neutrons

• The number of electrons

• The number of protons

• The number of isotopes

What is an isotope?

• Atoms of the same element with different numbers of protons.

• Atoms of the same element with different numbers of neutrons.

• Atoms of different elements with the same number of neutrons.

• Atoms that have the same mass number but different atomic numbers.

What is an element?

• A substance that cannot be broken down into simpler substances.

• A mixture of two or more substances.

• A compound formed by chemical reactions.

• A type of molecule that contains only one kind of atom.

What is the nucleus?

• The central part of an atom containing protons and neutrons.

• A type of cell organelle responsible for energy production.

• The outer layer of an atom that contains electrons.

• A subatomic particle found in the nucleus of an atom.