Bonding

Elements combine to form millions of

• metals

• mixtures

• compounds

The forces that hold atoms together in combinations are called

• energy bonds

• nuclear bonds

• chemical bonds

Every electron has a

• neutral charge

• positive charge

• negative charge

The exact positions of the electrons in an atom cannot be determined because electrons are always

• moving

• sharing

• changing

Compared with electrons that are closer to the nucleus, those that are farther away have

• less energy

• more energy

• equal energy

The electrons that form bonds with other atoms are the

• midlevel electrons

• innermost electrons

• outermost electrons

a neutral atom of an element has the same number of

• protons and neutrons

• protons and electrons

• neutrons and electrons

What is represented by the dots in an electron dot diagram?

• the number of atoms sharing an electron

• the total number of electrons in an atom

• the number of valance electrons in an atom

• the number of electrons circling the neucleus

What is the term for matter that is made up of two or more different kinds of atoms joined by chemical bonds?

• element

• compound

• metal

• noble gas

What is a covalent bond?

• a bond in which two atoms share eletrons

• a bond in which one atom gains an electon

• a bond in which two atoms contribute unequal numbers of electrons

• a bond in which all electrons remain with their original atoms