HBHD I Chapter 2

Front

Which of the following is not a subatomic particle? Circle the correct answer. Options: Proton, Electron, Isotope, Neutron

Back

Isotope

Front

Electrons move about within certain limits called:

Back

orbitals

Front

The number of protons in the nucleus is an atom’s:

Back

atomic number

Front

The number of protons and neutrons combined is the atom’s:

Back

atomic mass

Front

Which of the following is not one of the major elements present in the human body? Oxygen, Carbon, Nitrogen, Iron

Back

Iron

Front

Atoms usually unite with each other to form larger chemical units called:

Back

molecules

Front

Substances whose molecules have more than one element in them are called:

Back

compounds

Front

At the core of each atom is a nucleus composed of positively charged protons and negatively charged neutrons.

Back

False

Front

The formula for a compound contains symbols that represent each element in the molecule.

Back

True

Front

Ionic bonds are chemical bonds formed by the:

Back

donation of electrons from one atom to another