Biochemistry

Question 1

Atoms

Answer 1

The basic unit of a chemical element , the building blocks of matter

Question 2

Electrons

Answer 2

Negatively charged particles

Question 3

Protons

Answer 3

Positively charged particles

Question 4

Neutrons

Answer 4

No charge particles

Question 5

What is the nucleus made up of ?

Answer 5

Protons (positive charge ) Neutrons ( no charge)

Question 6

In an uncharged atom the number of protons and electrons are ?

Answer 6

Equal

Question 7

The central nucleus of an atom contains most of the atoms what ?

Answer 7

Mass

Question 8

In the distance of the nucleus are negatively charged particles called ?

Answer 8

Electrons

Question 9

Elements are composed of how many types of atoms ?

Answer 9

1

Question 10

Elements are represented by ?

Answer 10

One or two letter chemical symbol

Question 11

Octet means ?

Answer 11

Group of 8

Question 12

What’s the octet rule ?

Answer 12

The 1st orbital holds up to 2 electrons and the 2nd and 3rd orbitals hold up to 8 .

Question 13

Atoms combine to form what?

Answer 13

Molecules

Question 14

Molecules combine to form what ?

Answer 14

Compounds

Question 15

Define ionic bonds :

Answer 15

The electrostatic attraction between oppositely charged ions.

Question 16

Define Covalent bonds:

Answer 16

The fixed position between same charged ions .