Basic Chemistry Quiz

The negatively charged particle in an atom is called...

• Proton

• Electron

• Neutron

• Nucleus

The number of protons in an atom determines its...

• Mass number

• Atomic number

• Isotope

• Chemical bond

Electrons in an atom are arranged in...

• The nucleus

• Energy levels (shells)

• Neutrons

• Protons

The electron configuration of an oxygen atom (atomic number 8) is...

• 2,4

• 2,6

• 2,8

• 2,8,6

What is an isotope?

• Atoms with a different number of electrons

• Atoms with a different number of protons

• Atoms with a different number of neutrons

• Atoms with the same mass number

Elements in Group 1A of the periodic table are known for...

• Being reactive alkali metals

• Being nonmetals with high melting points

• Stability under normal conditions

• Low conductivity

The mass number of an atom is the sum of...

• Protons + electrons

• Protons + neutrons

• Electrons + neutrons

• Neutrons - electrons

The group number in the periodic table represents...

• The number of protons

• The number of energy levels

• The number of valence electrons

• The mass number

An element with an electron configuration of 2,8,8,1 belongs to Group...

• 1

• 2

• 7

• 8

Elements in Group 7A (halogens) tend to...

• Lose electrons

• Gain electrons

• Be unreactive

• Form positive ions