BMST - Basic Math and Science Atomic Structure and Bonding Questions and Answers 2

Question 1

What subatomic particle has a negative charge and orbits the nucleus?

Accepted Answer

Electron

Answer

Proton

Answer

Neutron

Answer

Photon

Question 2

How many electrons can the second energy level (n=2) hold?

Accepted Answer

8

Answer

2

Answer

18

Answer

32

Question 3

What type of bond forms when atoms share electrons?

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 4

What is the atomic number of an element?

Accepted Answer

The number of protons in its nucleus

Answer

The total number of protons and neutrons

Answer

The number of electron shells

Answer

The mass of the atom in grams

Question 5

Which of the following is an example of an ionic compound?

Accepted Answer

NaCl (sodium chloride)

Answer

H₂O (water)

Answer

CO₂ (carbon dioxide)

Answer

CH₄ (methane)

Question 6

What does the octet rule state?

Accepted Answer

Atoms tend to gain, lose, or share electrons to have 8 valence electrons

Answer

All atoms must have exactly 8 protons

Answer

Molecules must contain 8 atoms

Answer

Chemical reactions always produce 8 products