3.1 Biological Elements

Question 1

Bonding

Answer 1

Atoms connect to each other using bonds. When 2 or more atoms join they form a molecule

Question 2

Covalent bond

Answer 2

When two atoms share a pair of electrons.

Question 3

Ions

Answer 3

Atom/molecule where the total number of electrons is not equal to the total number of protons.

Question 4

Cation

Answer 4

Positively charged ion

Question 5

Anion

Answer 5

Negatively charged ion

Question 6

Ionic bond

Answer 6

One atom donates an electron and the other receives it. Held together by attraction of opposing charges

Question 7

Electrolytes

Answer 7

Ions in a solution

Question 8

Polymers

Answer 8

Long chain molecules made up by the linking of multiple individual molecules (monomers)