Every Chemistry that you need to know for AP Biology

What's matter?

• anything that takes up space and has mass

• A substance that cannot be broken down by chemical reaction

• The smallest unit of living organism

• A substance consisting of two or different elements.

What's compound?

• anything that takes up space and has mass

• A substance that cannot be broken down by chemical reaction

• The smallest unit of living organism

• A substance consisting of two or different elements.

What's element?

• anything that takes up space and has mass

• A substance that cannot be broken down by chemical reaction

• The smallest unit of living organism

• A substance consisting of two or different elements.

What's the difference between trace element and essential element?

• Both are needed by a living organism in large quantities.

• Only trace element is needed by a living organism in large quantities.

• Only essential element is needed by a living organism in large quantities

• Both are needed by a living organism in small quantities.

Which of the subatomic particles has negative charge?

• Proton

• Neutron

• electron

Which of the following subatomic particles are found in the nucleus?

• Protons

• Neutrons

• Electrons

What is an isotope?

• An atom with different number of protons and neutrons

• Two atoms of the same elements with different number of neutrons

• Two atoms of the same elements with different number of protons.

• Two atoms of two different elements with the same number of neutrons.

Electrons contains _______________.

• Energy

• Mass

• Positive charge

• atomic number

Elements with the same number of valence electrons would have similar ______________.

• chemical properties

• mass

• number of shells

• atomic number

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

ionic bond are formed due to _________ between two atoms.

• transfer of electron

• transfer of proton

• sharing of electron

• sharing of proton