Biochemistry

Question 1

Anything that has mass and occupies space?

Answer 1

Matter

Question 2

An element is the __ unit of all matter from which all things are built.

Answer 2

Smallest

Question 3

When atoms of the same element have different numbers of neutrons they are called….

Answer 3

Isotopes

Question 4

Elements in the body only need a small amount of ____ elements

Answer 4

Trace

Question 5

A ___ is the smallest particle of an element that still retains the properties of that element.

Answer 5

Atom

Question 6

What does a nucleus consist of?

Answer 6

Protons and neutrons

Question 7

Protons are ___ Charged. and Neutrons are __ charged particles.

Answer 7

Positively; Noncharged

Question 8

Molecules are…

Answer 8

The result of two or more atoms bonding together

Question 9

___ are molecules that consist of more than one type of element.

Answer 9

Compounds

Question 10

Ions are atoms that __ or ___ an electron.

Answer 10

Gain or lose

Question 11

polar =

Answer 11

Charged

Question 12

Positive charged ions have ___ an electron.

Negatively charged ions have ___ an electron

Answer 12

Lost

gained