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Chemistry Ch. 4 - Elements, Atoms, and Ions

Total questions: 63

Worksheet time: 34mins

Name
Class
Date
1.

According to the textbook, how many elements are there?

a)

88

b)

115

c)

27

d)

100

2.

How many elements are found in nature?

a)

27

b)

115

c)

88

d)

37

3.

How many elements were created in a laboratory?

a)

27

b)

88

c)

37

d)

22

4.

Many names of elements are derived from...

a)

German

b)

Latin

c)

Greek

d)

French

5.

Some elements are named after

a)

Plants

b)

The places where they were discovered

c)

Famous Scientists

d)

Famous Authors

6.

The philosopher who came up with the idea of Atomos, or what we know today as atoms.

a)

Lao Tzu

b)

Democritus

c)

Pythagoras

d)

Ibn Sina

7.

The scientist who thought that each compound will always have a definite ratio of atoms

a)

William Thomson

b)

J.J. Thomson

c)

Joseph Proust

d)

Ernest Rutherford

8.

A given compound always contains elements in exactly the same proportion by mass

a)

Law of Conservation of Mass

b)

Law of Constant Composition

c)

Dalton's Atomic Theory

d)

Newton's 2nd Law of Motion

9.

States that ...

1) elements are composed of atoms.

2) atoms of same element are identical, but differ from other elements.

3) elements can mix together

4) atoms only change when mixed with other elements

a)

Gold Foil Experiment

b)

Plum Pudding Model

c)

Dalton's Atomic Theory

d)

Hitchhiker's Guide to the Galaxy

10.

Initially, scientists thought that atoms were...

a)

Solid

b)

Liquid

c)

Gaseous

d)

A delicious dessert

11.

(Dalton) Matter is not created nor destroyed in any chemical or physical change

a)

Law of Constant mass

b)

Law of Constant Proportion

c)

Law of Conservation of proportion

d)

Law of Conservation of Mass

12.

A combination of chemical symbols and numbers to represent a substance

a)

Isotope

b)

Chemical Formula

c)

Elemental Symbol

d)

Quadratic Formula

13.

A number that shows how many atoms of an element are in a compound.

a)

Subscript

b)

Superscript

c)

Coefficient

d)

Atomic Mass

14.

Scientist who discovered the electron

a)

Ernest Rutherford

b)

William Thomson

c)

J.J. Thomson

d)

Warren G. Harding

15.

The piece of equipment used in Thomson's experiment

a)

Cathode ray tube

b)

Gold Foil

c)

Periodic Table

d)

Plum Pudding

16.

The first model of the atom, which consisted of negatively-charged electrons inside a positively-charged cloud.

a)

Mendeleev Model

b)

Blueberry Muffin Model

c)

Rutherford Model

d)

Plum Pudding model

17.

Scientist who disproved the plum pudding model when he discovered the nucleus

a)

Democritus

b)

William Thomson

c)

Ernest Rutherford

d)

Dmitri Mendeleev

18.

Experiment in which alpha particles were shot at a piece of gold foil; Led to the discovery of the proton and the nucleus.

a)

Alpha Particle Experiment

b)

Gold Foil Experiment

c)

Cathode Ray Tube Experiment

d)

Aluminum Foil Experiment

19.

The majority of an atom is...

a)

Filled by electrons

b)

Empty Space

c)

Solid

d)

The Nucleus

20.

A positively-charged subatomic particle.

a)

Proton

b)

Electron

c)

Atom

d)

Neutron

21.

A subatomic particle with no charge.

a)

Electron

b)

Proton

c)

Neutron

d)

Element

22.

A negatively-charged subatomic particle

a)

Proton

b)

Soup

c)

Neutron

d)

Electron

23.

The part of the atom that accounts for most of its mass

a)

Electron(s)

b)

Nucleus

c)

Empty Space

d)

Plum Pudding

24.

The subatomic particle that determines an atom's chemical properties

a)

Proton

b)

Electron

c)

Neutron

d)

Joseph Stalin

25.

Atoms of the same element but with different numbers of neutrons

a)

Compounds

b)

Isotopes

c)

Mixtures

d)

Solutions

26.

The number of protons in an atom's nucleus

a)

Atomic Number

b)

Proton Mass

c)

Mass number

d)

Atomic Mass

27.

The number of protons and neutrons combined within an atom's nucleus

a)

Mass number

b)

Atomic mass

c)

Nuclear number

d)

Nuclear mass

28.

What is the element, mass number, and atomic number shown in this image?

a)

Copper; 63; 29

b)

Copper; 29; 63

c)

Curium; 29; 63

d)

Cobalt; 63; 29

29.

What is the element, mass number, and atomic number of the isotope shown in this image?

a)

Beryllium; 4; 9

b)

Barium; 9; 4

c)

Beryllium; 9; 4

d)

Beef; 9; 4

30.

The creator of the periodic table

a)

Ernest Rutherford

b)

Dmitri Mendeleev

c)

Democritus

d)

George W. Bush

31.

What type of element makes up the majority of the periodic table?

a)

Non-Metal

b)

Metalloid

c)

Metal

d)

Metallica

32.

What type of element usually comes in the form of a gas?

a)

Metal

b)

Metalloids

c)

Mercury

d)

Non-metals

33.

What type of element is typically shiny and brittle?

a)

Gas

b)

Metal

c)

Metalloid

d)

Non-metal

34.

Why was Mendeleev's organization of the elements better than previous arrangements?

a)

It gave the mass number of each element

b)

It was in alphabetical order

c)

It allowed for the addition of unknown elements

d)

It gave each element a symbol

35.

Trends in the properties of certain elements; Allows for the prediction of new elements

a)

Families

b)

Periodicity

c)

Atomic Mass

d)

Ductility

36.

Common Properties of Metal include:

a)

Malleability

b)

Poor conductors

c)

Ductility

d)

Solid at room temperature

37.

Common properties of metalloids include:

a)

A lustrous appearance

b)

Poor conductors

c)

Very brittle

d)

High ductility

38.

What is the chemical formula for an ionic compound with magnesium(2+ charge) and nitride(3- charge)?

a)

Mg₂N₃

b)

Mg₃N₂

c)

Mg₂N₂

d)

Mg₃N₃

39.

What is the chemical formula for a compound with twice as many hydrogen atoms as carbon atoms, and as many oxygen atoms as carbon atoms.

a)

C₆H₁₂O₆

b)

C₁₂H₆O₁₂

c)

₆C₁₂H₆O

d)

C6H12O6

40.

Vertical columns on the periodic table are referred to as...

a)

Chalcogens

b)

Families

c)

Periods

d)

Rows

41.

Horizontal rows on the periodic table are referred to as...

a)

Series

b)

Groups

c)

Families

d)

Periods

42.

Elements in the first group on the periodic table are called...

a)

Transition Metals

b)

Alkaline Earth Metals

c)

Alkali Metals

d)

Noble Metals

43.

Elements in the same _________ have similar properties

a)

Group

b)

Period

c)

Table

d)

Physical state

44.

These three metals are called noble metals because they are found in their pure form.

a)

Copper, Silver, Iron

b)

Gold, Copper, Iron

c)

Silver, Gold, Iron

d)

Silver, Platinum, Gold

45.

The ______ don't combine readily with other elements.

a)

Halogens

b)

Noble gases

c)

Alkali Metals

d)

Noble metals

46.

There are _ diatomic molecules.

a)

7

b)

6

c)

10

d)

2

47.

Different forms of an element due to the arrangement of its atoms

a)

Compounds

b)

Allotropes

c)

Isotopes

d)

Ions

48.

An atom or group of atoms with a positive or negative charge.

a)

Ion

b)

Proton

c)

Compound

d)

Molecule

49.

(T/F) Ions are formed by changing the number of electrons or protons in an atom.

a)

True

b)

False

50.

How do you express an ion with 11 protons and 8 electrons?

a)

Na° => Na³⁺+3e⁻

b)

Na° => Na³⁺-3e⁻

c)

Na° => Na⁺+3e⁻

d)

Na°+3e⁻ => Na³⁺

51.

How do you express an atom with 6 protons and 8 electrons?

a)

C° => C²⁻+2e⁻

b)

C°-2e⁻ => C²⁻

c)

C°+2e⁻ => C²⁺

d)

C°+2e⁻ => C²⁻

52.

How do you express an ion with 3 protons and 2 electrons?

a)

Li° => Li⁺-1e⁻

b)

Li° => Li⁺+1e⁻

c)

Li°+1e⁻ => Li⁺

d)

Li° => Li°+1e⁻

53.

___ are ions with a positive charge, and ___ are ions with a negative charge.

a)

Cations; Anions

b)

Protons; Electrons

c)

Anions; Cations

d)

Protons; Electrons

54.

An anion of chlorine could also be called...

a)

Christopher

b)

Chloride

c)

Chlorite

d)

Clorium

55.

Mendeleev made his period table before the discovery of these...

a)

Subatomic Particles

b)

Atoms

c)

cheese curds

d)

The Americas

56.

Which of the following are metalloids?

a)

Barium

b)

Silicon

c)

Phosphorus

d)

Germanium

e)

Arsenic

57.

Which of these are diatomic molecules?

a)

Sodium

b)

Hydrogen

c)

Obamium

d)

Krypton

e)

Chlorine

58.

Element named in the honor of Mendeleev.

a)

Mendovium

b)

Meitnerium

c)

Mendelevium

d)

Molybdenum

59.

Why do ionic compounds have a high melting point?

a)

They have strong bonds

b)

They do not dissolve in water

c)

They have a positive charge

d)

They have a low specific heat capacity

60.

When do ionic compounds conduct electricity?

a)

As a gas

b)

When dissolved in water

c)

As a solid

d)

As a liquid

61.

What is the formula for an ionic compound with calcium(2+ charge) and chloride(-1 charge)

a)

CaCl₂

b)

Ca₂Cl

c)

CaCl

d)

Ca₂Cl₂

62.

Properties of ionic compounds include:

a)

High melting point

b)

Low boiling point

c)

Conductive while in liquid form

d)

Magnetic

63.

Which is not a way to express an ionic compound with sodium and chlorine?

a)

NaCl

b)

Na⁺Cl⁻

c)

Na°Cl°

d)

Sodium Chloride