Atomic Structure Test Prep

​Atomic Notation (Isotopic Notation)

Multiple Choice

108 is the....

• atomic number

• number of protons

• mass number

• number of neutrons

Multiple Choice

What is the smallest unit of matter? It is composed of protons and neutrons, held together in the nucleus, and electrons around the nucleus in different electron orbitals, which form an electron cloud.

• cell

• nucleus

• atom

• electron

Multiple Choice

What are any of the various self-contained units of matter or energy that are fundamental parts of all matter. These particles include electrons, protons, and neutrons.

• subatomic particles

• elements

• nucleus

• electron cloud

Multiple Choice

What is a subatomic particle with a positive charge that is in the nucleus of an atom?

• neutron

• proton

• electron

• valence electron

Multiple Choice

What is a subatomic particle with no charge, located in the nucleus of an atom?

• neutron

• proton

• electron

• valence electron

Multiple Choice

What is a subatomic particle with a negative charge? It is found in the electron cloud surrounding the nucleus.

• neutron

• proton

• electron

• electron cloud

Multiple Choice

Which subatomic particles are found in the nucleus of an atom?

• Protons and Electrons

• Protons and Neutrons

• Neutrons and Electrons

• Protons, Neutrons and Electrons

Multiple Choice

What electrical charge does a proton have?

• +1

• 0

• -1

• +2

Multiple Choice

What mass does a neutron have?

• 1 amu

• 0 amu

• -1 amu

• +2 amu

Multiple Choice

Complete the missing label on the diagram.

• Neutron

• Centre

• Nucleus

• Sub atomic particle

Multiple Choice

In order for an atom to be neutral what has to be true?

• The atom has more protons than neutrons

• The atom has more neutrons than protons

• The atom has the same number of protons and neutrons

• The atom has the same number of protons and electrons

Multiple Choice

How many electrons does this atom have?

• 2

• 4

• 6

• 10

Multiple Choice

Where is most of the mass in an atom located?

• in the nucleus

• in the protons

• in the neutrons

• in the electrons

Multiple Choice

How many neutrons are in the nucleus of the atom ¹⁷₉F?

• 17

• 9

• 8

• 7

Multiple Choice

The number of protons in the nucleus of an atom of atomic number 32 is

• 4

• 32

• 42

• 73

Multiple Choice

Atoms of ²³⁵U and ²³⁸U differ in structure by three (3)

• electrons

• isotopes

• neutrons

• protons

Multiple Choice

How many protons does this isotope of titanium have?

• 48

• 22

• 26

• 70

Multiple Choice

How many neutrons does the isotope of lithium have?

• 8

• 3

• 4

• 5

Multiple Choice

How many neutrons in C-14?

• 6

• 7

• 14

• 8

Multiple Choice

How many neutrons does uranium-235 have?

• 238

• 92

• 146

• 143

Multiple Choice

What do these isotopes of carbon all have in common?

• neutrons & mass number

• atomic number and neutrons

• atomic number and electrons

• protons, atomic number, and mass number

Multiple Choice

which atom has  4 neutrons?

• Li-6

• Li-7

• Li-8

• they have the same # of neutrons

Multiple Choice

The defining property of an atom is:

• The number of neutrons in the atom.

• The number of protons in the atom.

• The number of electrons in the atom.

• The number of positrons in the atom.

Multiple Choice

The atomic number of Uranium is:

• 110

• 16

• 53

• 92

Multiple Choice

An oxygen atom gains 2 electrons.  What is its charge?

• -1

• -2

• +1

• +2

Multiple Choice

What element has 42 protons?

• Ca

• Mo

• Zr

• Po

Multiple Choice

If an atom of nickel has a charge of +3, how many electrons does the atom have?

• 28

• 25

• 26

• 31

Multiple Choice

How many neutrons would V-49 have?

• 26

• 49

• 23

• 50.94

Multiple Choice

How many protons does Pb-209 have?

• 127

• 209

• 82

• 291

Multiple Choice

How many electrons does a Copper atom have?

• 63

• 29

• 92

• 34