Science ch 8 test study

What is a Chemical bond?

• A force that holds two or more atoms together in a compound

• A force that holds one atom together in a compound

• An outermost electron of an atom that precipitate in chemical bonding.

  The blocks on the periodic table an element.

• Matter that is made up of two or more different kinds of atoms joined together by chemical bonds.

What is a Electron dot diagram?

• A force that holds two or more atoms together in a compound

• A model that represent valence electrons in an atoms dots around the elements chemical symbol.

• An outermost electron of an atom that precipitate in chemical bonding.

  The blocks on the periodic table an element.

• Matter that is made up of two or more different kinds of atoms joined together by chemical bonds.

What is a Valence electron?

• Matter that is made up of two or more different kinds of atoms joined together by chemical bonds

• A force that holds two or more atoms together in a compound

• An outermost electron of an atom that precipitate in chemical bonding.

  The blocks on the periodic table an element.

• the average mass of all the different isotopes of an element.

What is a compound?

• A force that holds two or more atoms together in a compound

• An outermost electron of an atom that precipitate in chemical bonding.

• A model that represent valence electrons in an atoms dots around the elements chemical symbol.

• Matter that is made up of two or more different kinds of atoms joined together by chemical bonds.

What is an atomic number?

• Matter that is made up of two or more different kinds of atoms joined together by chemical bonds.

• the number is the number of protons in each atom of an element

• metals, nonmetals, or metalloids

• group on a periodic table is column

True or False. Elements in a group have the similar chemical properties and react

• True

• False

True or False? The three major spaces on the periodic table are metals, nonmetals, or metalloids.

• True

• False

True or False. Metals are not good conductors of electricity and thermal energy. Metals can't be easily hammered into sheets.

• True

• False

True or False. Metalloids have properties in common with both metals and nonmetals. The are used as semiconductors in devices.

• True

• False

True or False. Metals don't conduct electricity or thermal energy. Most nonmetals are liquids at room temperature. The solids tend to be brittle.

• True

• False