session 7

session 7

CHEMICAL BASIS OF LIFE

Multiple Choice

Where are protons located in an atom?

• in the nucleus

• in the electron cloud

• in the outer most shell

• in the cell membrane

Multiple Choice

What type of charge does a neutron have

• positive (+)

• negative (-)

• magnetic

• chemical

• has no charge

Multiple Choice

What is the charge of an atom

• positive

• negative

• nerutral

• magnetic

Multiple Choice

Elements are composed of particles called

• organs

• organelles

• cells

• atoms

Multiple Select

Atoms the combine with themselves or other atoms form

• cells

• organ systems

• chemical bonds

• tissue

Multiple Choice

Which of the following elements represent less than 1% of your body weight?

• Magnesium

• Sodium

• Chlorine

• all these

CHEMISTRY is the branch of science that considers the composition of matter and how this composition changes.

Multiple Choice

Which of the following is true of matter?

• anything that has weigh and takes up space

• includes all the solids , liquids, and gases.

• consist of particles that are organized in specific ways

• all of these are true