Basic Chemistry

Six Major Elements

Trace Elements

What are the three parts of the atom?

Protons are located in the ________ and have a ______________ charge.

Neutrons are located in the ___________ and have a ____________ charge.

Electrons are located in the ____________ and have a ____________ charge.

In the innermost orbital there can be ____ number of electrons.

In the outermost orbital there can be a __ number of electrons.

The atomic number is the number of ____ in an atom.

When the number of protons is equal to the number of electrons the atom has a net charge of ________.

The atomic mass is the sum of the atoms __________ and ________.

Atoms of the same element that had different number of neutrons are called

To determine the number of neutrons,

When two or more atoms transfer electrons in order to complete the outermost orbital

When an atom has lost or gained electrons

the atom has lost electrons and has a positive charge

the atom has gained electrons and has a negative charge

when two or more atoms share electrons

When electrons are not shared equally among atoms

when electrons are shared equally among atoms

when 1 pair of electrons are being shared between two carbon atoms

when 2 pairs of electrons are being shared

when 3 pairs of electrons are being shared

when two ore more atoms have been chemically combined together