2.1 Vocab

Question 1

Atom

Answer 1

The basic unit of matter

Question 2

Nucleus

Answer 2

In cells, structures that contains the cell’s genetic material in the form of DNA

Question 3

Electron

Answer 3

Negatively charged particle, located in the space surrounding the nucleus

Question 4

Element

Answer 4

Pure substance that consists entirely of one type of atom

Question 5

Isotope

Answer 5

One of several forms of a single element, which contains the same number of protons but different number of neutrons

Question 6

Compound

Answer 6

Substance formed by the chemical combination of two or more elements in definite proportions

Question 7

Ionic Bond

Answer 7

Chemical bond formed when one or more electrons are transferred from one atom to another

Question 8

Ion

Answer 8

Atom that has a positive or negative charge

Question 9

Covalent Bond

Answer 9

Type of bond between atoms in which the electrons are shared

Question 10

Molecule

Answer 10

Smallest unit of most compounds that displays all the properties of that compound

Question 11

van der Waals forces

Answer 11

Slight attraction that develops between oppositely charged regions of nearby molecules