Chemistry review

Front

Which of the following is described as the basic unit of matter? Options: Element, Atom, Molecule, Compound

Back

Atom

Front

A molecule is________

Back

more than one atom bonded together by covalent bonds

Front

What charge does an electron have?

Back

Negative

Front

Which of the following is found in the nucleus of an atom? Options: electrons, neutrons, The center of an atom, composed of protons and neutrons, molecules

Back

The center of an atom, composed of protons and neutrons

Front

An ionic bond forms when

Back

valence electrons are transferred between atoms

Front

In chemical compounds, covalent bonds form when: pairs of electrons are shared between two atoms.

Back

pairs of electrons are shared between two atoms.

Front

This symbol indicates a _______.

Back

proton

Front

What 2 elements make up water?

Back

Hydrogen and Oxygen

Front

An electron is located ...

Back

outside the nucleus.

Front

The center of an atom is called a/an __________.

Back

nucleus