IPC Chemistry

Ionic bonds are formed by atoms transferring one or more valence electrons in order to make a full valence shell. They are made from metals and non-metals bonding.

• True

• False

The smallest unit of a chemical compound, composed of two or more atoms bonded together is a molecule.

• True

• False

Tags

NGSS.MS-PS1-1

Methane (CH4) is a ____.

• element

• compound

• mixture

• none of the above

Tags

NGSS.MS-PS1-1

Which element do we use today as the standard for measuring other elements?

An ion is a ____.

• charged particle

• charged molecule

• nonpolar particle

• nonpolar molecule

Charge of elements in Group 1 of the periodic table.

• +1

• +2

• -1

• -2

What does the atomic number indicate?

• atomic mass

• number of protons

• number of energy shells

The symbol for hydrogen is ____.

• H

• Au

• Sn

• C

The symbol for mercury is ____.

• H

• Au

• Sn

• Hg

The symbol for gold is ____.

• H

• Au

• Sn

• Hg