Question 1

A carbon rod or metal strip inserted into a molten compound or a solution to carry the electric current is called an electrode.

Accepted Answer

A) True 
 B)False

Question 2

Which element is a transition metal?

Accepted Answer

A) Mg 
B) Cd 
C) Ar 
D) I 
A) Mg 
B) Cd 
C) Ar 
D) I

Question 3

A line spectrum is to an element as a(n)________ is to a person.

Accepted Answer

A) brain 
B) eye 
C) fingerprint 
D) ear 
A) brain 
B) eye 
C) fingerprint 
D) ear

Question 4

Which element is a noble gas?

Accepted Answer

A) B 
B) C 
C) Xe 
D) Na 
A) B 
B) C 
C) Xe 
D) Na

Question 5

Write the electron configuration for bromine.

Accepted Answer

Bromine (Br) is the 35th element on the

Question 6

The mass of a nucleon is

Accepted Answer

A) 1 gram. 
B) 1 atomic mass unit (u). 
C) equivalent to the mass of the electron. 
D) 0) 
A) 1 gram. 
B) 1 atomic mass unit (u). 
C) equivalent to the mass of the electron. 
D) 0)

Question 7

Write the electron configuration for Mg.

Accepted Answer

Magnesium (Mg) is the 12th element on th

Question 8

The ground state electron configuration for sodium is

Accepted Answer

A) 1s² 2s² 2p⁶ 3s² 3p⁴. 
B) 1s² 2s² 2p⁶ 3s¹. 
C) 1s² 2s² 2p⁶. 
D) 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹. 
A) 1s² 2s² 2p⁶ 3s² 3p⁴. 
B) 1s² 2s² 2p⁶ 3s¹. 
C) 1s² 2s² 2p⁶. 
D) 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹.

Question 9

The nuclear nature of the atom was postulated by

Accepted Answer

A) Rutherford. 
B) Dalton. 
C) Thomson. 
D) Millikan. 
A) Rutherford. 
B) Dalton. 
C) Thomson. 
D) Millikan.

Question 10

Identify the uranium isotope.

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 11

The designations s,p,d,f designate

Accepted Answer

A) different electron energy levels. 
B) different electron orbitals within an energy level. 
C) different types of electrons. 
D) valence electrons. 
A) different electron energy levels. 
B) different electron orbitals within an energy level. 
C) different types of electrons. 
D) valence electrons.

Question 12

Ions are

Accepted Answer

A) charged atoms (or groups of atoms). 
B) electrons. 
C) neutrons. 
D) electrodes. 
A) charged atoms (or groups of atoms). 
B) electrons. 
C) neutrons. 
D) electrodes.

Question 13

The isotope of hydrogen that has two neutrons is called

Accepted Answer

A) deuterium. 
B) hydrogen. 
C) dihydrogen. 
D) tritium. 
A) deuterium. 
B) hydrogen. 
C) dihydrogen. 
D) tritium.

Question 14

The sum of protons and neutrons in an atom is called the

Accepted Answer

A) atomic number. 
B) atomic mass. 
C) nuclear mass. 
D) nucleon number. 
A) atomic number. 
B) atomic mass. 
C) nuclear mass. 
D) nucleon number.

Question 15

What is the maximum number of electrons that can occupy a single orbital?

Accepted Answer

A) 1 
B) 2 
C) 8 
D) 0 
A) 1 
B) 2 
C) 8 
D) 0

Question 16

Calcium has ________ valence electron(s).

Accepted Answer

The answer of Calcium has ________ valence electron(s)....

Question 17

Electrolytes are important substances in the chemistry of living systems.An electrolyte is a compound that

Accepted Answer

A) conducts electricity when melted or put into solution. 
B) generates light when electricity is applied. 
C) contains electrons. 
D) contains electrodes. 
A) conducts electricity when melted or put into solution. 
B) generates light when electricity is applied. 
C) contains electrons. 
D) contains electrodes.

Question 18

How many nucleons are in this isotope of calcium?

Accepted Answer

A) 66 
B) 46 
C) 20 
D) 16 
A) 66 
B) 46 
C) 20 
D) 16

Question 19

The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁵ is

Accepted Answer

A) Ar. 
B) Cl. 
C) S. 
D) Br. 
A) Ar. 
B) Cl. 
C) S. 
D) Br.

Question 20

Potassium has ________ valence electron(s).

Accepted Answer

The answer of Potassium has ________ valence electron(s)....

Exam 3: Atomic Structure

A carbon rod or metal strip inserted into a molten compound or a solution to carry the electric current is called an electrode.

Which element is a transition metal?

A line spectrum is to an element as a(n)________ is to a person.

Which element is a noble gas?

Write the electron configuration for bromine.

The mass of a nucleon is

Write the electron configuration for Mg.

The ground state electron configuration for sodium is

The nuclear nature of the atom was postulated by

Identify the uranium isotope.

The designations s,p,d,f designate

Ions are

The isotope of hydrogen that has two neutrons is called

The sum of protons and neutrons in an atom is called the

What is the maximum number of electrons that can occupy a single orbital?

Calcium has ________ valence electron(s).

Electrolytes are important substances in the chemistry of living systems.An electrolyte is a compound that

How many nucleons are in this isotope of calcium?

The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁵ is

Potassium has ________ valence electron(s).

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