Chemistry - Conceptual Biology 2020

The three particles that make up atoms are

• positives, negatives, and neutrals

• protons, neutrons, and electrons

• protons, neutrons, and isotopes

What are found in the space surrounding the nucleus of an atom? (in the orbitals)

• protons

• electrons

• neutrons

Subatomic particles are

• particles that are smaller than an atom

• made up of a single atom

• particles found beneath atoms

NaCl is formed as one electron is transferred from Na to Cl. What type of bond is this?

• hydrogen

• covalent

• ionic

If an atom contains 11 protons and 12 neutrons, its atomic number is

• 1

• 11

• 12

Which of the following is a substance formed by the chemical joining of two or more elements in definite amounts?

• compound

• element

• nucleus

Which of the following makes up a molecule of water?

• one atom of hydrogen and two atoms of oxygen

• two atoms of hydrogen and one atom of oxygen

• one atom of sodium and one atom of chlorine

A covalent bond is formed as the result of

• transferring electrons

• sharing electrons

• transferring protons

What type of electron is available to form bonds?

• valence

• nucleus

• ionic

What type of ion forms when an atom loses electrons?

• neutral

• positive

• negative