Atoms contain an equal number of

A positively charged ion:

Negatively charged ion:

Protons and Neutrons are both located in the:

When an atom loses or gains a charge it becomes a/an:

Many atoms with the same number of electrons and protons and same chemical properties

How are elements identified

What determines the atomic number

What determines the mass number?

Electrons are not counted towards the atomic mass because their weight is very small.

Atoms of the same element but with different mass numbers; have identical characteristics but different number of neutrons

weighted average of all the masses of all the isotopes

Two or more elements exist together

During chemical bonding, an ionic bond ___ ions together

A molecule during an ionic bond will become positive when

During chemical bonding a molecule becomes negatively charged when an atom

Type of bond when a positive atom is attracted to a negative atom

Type of bonds when there is a sharing of electrons

What is the most abundant molecule in living cells

Adherence of molecules creating surface tension and capillary action:water movement in and out of cells

dehydration synthesis or condensation:

Solutes can be a solid, liquid, or gas

Solvents are usually liquid;but can be gas or solid

Most common solutions are compounds dissolved in water. acids and bases

produces hydrogen ions H+ when in solution

dissolved in water release hydroxide ions and a cation, and become electrolytes

Substance with charged particles that can conduct electricity

The pH of the blood must remain in a narrow range 7.35-7.45 for proper function

when doing a chemical formula acids to the left and bases to the right.

ex. HCL (hydrochloric acid); NaOH(Sodium Hydroxide)