Module 7: Introduction to Chemistry

Multiple Choice

A scientist uses an instrument to study the small particles in a piece of matter. The diagram shows what the scientist sees.

What state of matter is the scientist most likely observing?

• gas

• solid

• liquid

• vapor

Multiple Choice

What does the quantum mechanical model of an atom describe?

• The structure of the nucleus

• The probability of finding electrons

• The mass of the atom

• The charge of the atom

Categorize

Options (7)

Positive Charge

No Charge

Negative Charge

Orbit Nucleus

Along with protons, determines the atom’s mass.

Determines the atom’s elemental identity

Determines what chemical bonds the atom will form.

Identify each statement as describing a proton (p), neutron (n), or electron (e). - Positively charged. - Negatively charged. - No charge. - Orbit the nucleus. - Determines the atom’s elemental identity. - Determines what chemical bonds the atom will form. - Along with protons, determines the atom’s mass.

Proton

Neutron

Electron

Reorder

Order the following elements from smallest to largest atomic number

• H

• F

• Na

• Ar

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Choice

Based on the atomic diagram showing lithium-7 with its nuclear composition, how many neutrons are present in this isotope?

• 8
• 3
• 4
• 5

Multiple Choice

By definition the term "anion​" means ​ ​

​ ​

• negatively charged (-1,-2,-3)
• positively charged (+1,+2, +3)
• No charge

Multiple Choice

How many valence electrons are shown in the diagram?

• 16

• 7

• 6

• 2

Multiple Choice

What is the total number of electrons in an atom with a charge (ion)?

• Atomic number + charge

• Atomic number - charge

• Charge - atomic number

• Atomic number

Multiple Choice

How many electrons does the following ion have?

• 3

• 7

• 10

• 14

Fill in the Blanks

Multiple Choice

This could be the dot diagram of

• Mg

• Cl

• C

• O

Multiple Choice

How many valence electrons should Magnesium have in its Lewis dot model?

• 1

• 2

• 3

• 4

Multiple Choice

This is a correct dot diagram for neon (Ne)

• true

• false

Multiple Choice

This could be the dot diagram of

• Al
• Si
• Na
• Mg

Multiple Choice

Which of the following statements is true regarding metals, nonmetals, and metalloids?

• Metals are poor conductors of heat and electricity.

• Nonmetals are shiny and malleable.

• Metalloids conduct heat and electricity moderately well.

• Nonmetals are good conductors of heat.

Multiple Choice

What is the trend in reactivity of Group 1 metals as you move down the group?

• Increases

• Decreases

• Remains the same

• Varies randomly

Multiple Choice

Which transition metal has the highest melting point?

• Tungsten

• Iron

• Copper

• Gold

Multiple Choice

What is the significance of silicon in the Earth's crust?

• It is the most abundant element

• It is the second most abundant element

• It is the least abundant element

• It has no significance

Multiple Choice

What do all the group 5 elements have in common?

• They are all gases

• They have five valence electrons

• They are all metals

• They are all non-metals

Multiple Choice

Which element is the only metallic element present in Group 5?

• Nitrogen

• Bismuth

• Antimony

• Phosphorus

Multiple Choice

What is the most abundant element in the Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

Multiple Select

Which of the following statements is true about the chalcogens?

• All of the solid chalcogens are soft and don't conduct heat well.

• Oxygen makes up 65% of the human body.

• All of the group 6 elements have six valence electrons.

• All of the compounds of hydrogen with chalcogens are toxic.

Multiple Choice

What elements generally make an ionic bond?

• metal and nonmetal
• 2 or more nonmetals
• metal
• none of the above

Multiple Choice

What elements generally make a covalent bond?

• metal and nonmetal
• 2 or more nonmetals
• metal
• none of the above

Multiple Choice

Predict the bond that will form between Cu and F.

• Ionic

• Covalent

• Metallic

Multiple Choice

Predict the bond that will form between Se and Cl.

• Ionic

• Covalent

• Metallic

Multiple Choice

Predict the bond that will form between Sr and S.

• Ionic

• Covalent

• Metallic

Multiple Choice

What is the correct name for CF₄

• Carbon fluoride

• Carbon IV fluoride

• Carbon tetrafluoride

Multiple Choice

What is the correct name of the compound P₂O₅

• phosphorous oxide

• diphosphorous pentoxide

• phosphorous pentoxide

Multiple Choice

What formula represents dinitrogen trioxide?

• N₃O₂

• NO₂

• N₂O₃

Multiple Choice

What is the name of the compound P₄S₁₀

• phosphorous sulfide

• tetraphosphide decasulfate

• phosphorous decasulfate

• tetraphosphorous decasulfide

Multiple Choice

What is the name of Al₂O₃

• aluminum oxide

• dialuminum trioxide

• aluminum III oxide

Multiple Choice

The correct oxidation number for the Beryllium ion is

• 0

• +2

• -2

• +4

Multiple Choice

When a metal reacts with a nonmetal in the formation of an ionic compound, the metal ion will always

• share its valence e-

• transfer valence e- to the nonmetal

• accept valence e- from the nonmetal

• neither transfer or share e- with the nonmetal

Multiple Choice

What is the correct name for the compound RhP?

• Rhodium Phosphide

• Rhodium Phosphite

• Rhodium Phosphate

• Rhodium Monophosphide

Multiple Choice

Write the symbol for aluminum ion.

• Al³⁺

• Al^3-

• Al⁵⁺

Multiple Choice

Sulfide

• S^2-

• S^-

• SO₃^2-

• SO₄^2-

Multiple Choice

Element: Calcium

Ion Name: ? Formula ?

• Calcium: Ca²⁺

• Calcide: Ca²⁺

• Calcate: Ca²⁺

• Calcite: Ca²⁺

Multiple Choice

Na⁺ and Cl^- create...

• Na₂Cl

• NaCl₂

• Na₂Cl₂

• NaCl

Multiple Choice

Which of the following has a full valence shell?

• Oxygen
• Neon
• Barium
• Carbon

Multiple Choice

Ionic bonds are formed when one atom gives electrons to another atom.

• True
• False