Bio Understanding Matter and Chemical Bonds

What is matter?

• Anything that has mass and takes up space

• A pure substance made of only one type of atom

• The smallest unit of matter that retains specific properties

• A measure of the tendency of an atom to attract electrons

Tags

NGSS.MS-PS1-5

What is an atom?

• A pure substance made of only one type of atom

• The smallest unit of matter that still retains specific properties

• A substance consisting of two or more elements bonded together

• An attraction between two or more atoms

What is an element?

• A measure of the tendency of an atom to attract electrons

• A pure substance made of only one type of atom

• The electrons in the outermost energy level

• A highly polar covalent bond

What is the octet rule?

• Atoms want to be stable and fill the outer shell

• The electrons in the outermost energy level

• An attraction between two or more atoms

• A measure of the tendency of an atom to attract electrons

What are valence electrons?

• The electrons in the outermost energy level

• Positively charged atoms

• Negatively charged atoms

• A highly polar covalent bond

What is a compound?

• A pure substance made of only one type of atom

• A substance consisting of two or more elements bonded together in a fixed ratio

• An attraction between two or more atoms

• A measure of the tendency of an atom to attract electrons

Tags

NGSS.MS-PS1-1

What is chemical bonding?

• An attraction between two or more atoms, and is what forms a chemical

• The electrons in the outermost energy level

• A highly polar covalent bond

• A measure of the tendency of an atom to attract electrons

Tags

NGSS.HS-PS1-1

What are covalent bonds?

• When electrons are shared

• When electrons are transferred

• Positively charged atoms

• Negatively charged atoms

Tags

NGSS.MS-PS1-1

What are ionic bonds?

• When electrons are shared

• When electrons are transferred

• Positively charged atoms

• Negatively charged atoms

What are cations?

• Positively charged atoms

• Negatively charged atoms

• A highly polar covalent bond

• The electrons in the outermost energy level