Atomic Structure Quiz

What is an atom commonly defined as?

• The smallest part of an element that can exist

• A combination of protons and neutrons

• A type of chemical bond

• A molecule made from two or more atoms

What did the Dalton model of the atom describe it as?

• An indivisible sphere

• A cluster of electrons

• A mini solar system

• A cube-shaped structure

According to the plum pudding model, what is the atom composed of?

• A ball of positive charge with negative electrons embedded in it

• Only neutrons and protons

• Alternating layers of protons and electrons

• A central nucleus surrounded by orbiting electrons

What discovery did Rutherford's later experiments lead to regarding the atom?

• The positive charge of the nucleus could be split into smaller particles called protons

• Electrons could exist outside the nucleus

• Atoms are mostly empty space

• Neutrons are the primary charge carriers

Tags

NGSS.HS-PS1-8

What is the relative electrical charge of an electron?

• +1

• 0

• -1

• +2

Why are atoms typically electrically neutral?

• They contain an equal number of protons and electrons

• They have no neutrons

• They are made of indivisible particles

• They have more protons than electrons

Tags

NGSS.HS-PS1-7

What is the atomic number of an atom indicative of?

• The number of protons in the nucleus

• The total number of electrons

• The sum of protons and neutrons

• The number of neutrons only

What is the relative mass of a neutron compared to a proton?

• 1

• 0.1

• 10

• 0.5

How does the Bohr model describe the structure of an atom?

• Electrons orbit the nucleus in fixed paths

• Electrons are scattered randomly around the nucleus

• Protons orbit around a central cluster of electrons

• Atoms are solid and indivisible

What role do neutrons play in an atom?

• They add mass but do not affect the charge

• They determine the electrical charge of the atom

• They orbit the nucleus and determine chemical properties

• They are the primary carriers of energy within the atom

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-8