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Y10 Chemistry questions

Total questions: 56

Worksheet time: 36mins

Name
Class
Date
1.

The atomic mass of an element tells you

a)

The number of protons and neutrons

b)

The number of protons and electrons

c)

The number of neutrons and electrons

d)

The number of neutrons only

2.

Elements from groups 1-3

a)

Are metals and lose electrons in a chemical reaction to become CATIONS

b)

Are metals and lose electrons in a chemical reaction to become ANIONS

c)

Are metals and gain electrons in a chemical reaction to become CATIONS

d)

Are metals and gain electrons in a chemical reaction to become ANIONS

3.

When hydrogen and sulfur react together, they undergo which type of bonding?

a)

Metallic

b)

Ionic

c)

Teronic

d)

Covalent

4.

Which statement best describes the following species: Al3+

a)

This is an aluminium cation. It has lost 3 electrons

b)

This is an aluminium cation. It has gained 3 electrons

c)

This is an aluminium anion. It has lost 3 electrons

d)

This is an aluminium anion. It has gained 3 electrons

5.

How would you name the following compound? MgS2

a)

Magnesium sulfur

b)

Dimagnesium sulfide

c)

Magnesium sulfide

d)

Magneside sulfide

6.

Write the formula for calcium chloride

a)

CaCl

b)

Ca2Cl

c)

CaCl2

d)

Ca3Cl2

7.
What is the element symbol for potassium?
a)

P

b)

Pt

c)

Ps

d)

K

8.
Which of the following is NOT a property of metals?
a)

Malleable

b)

Lustre

c)

Good electrical conductivity

d)

Brittle

9.
Which of the following is not a group 1 metal?
a)

Lithium

b)

Sodium

c)

Potassium

d)

Calcium

10.
Which of the following is a transition metal?
a)

Magnesium

b)

Aluminium

c)

Iron

d)

Neon

11.
Which subatomic particles are located in the nucleus?
a)

Electrons only

b)

Electrons and neutrons

c)

Protons and electrons

d)

Protons and neutrons

12.
Elements in the periodic table ______ in ___________ from the simplest element to the most complex.
a)

increase, atomic number

b)

increase, neutrons

c)

decrease, atomic number

d)

decrease, atomic mass

13.
What is the total number of atoms present in the formula H2SO4 ?
a)

1

b)

3

c)

6

d)

7

14.
How many neutrons does this element have?
a)

10

b)

9

c)

19

d)

0

15.
Name the following ionic compound: BeCl2
a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

16.
Which of the following is NOT a polyatomic ion?
a)

NH4+

b)

HCO3-

c)

Ca2+

d)

SO42-

17.
The majority of an atom's mass exists where?
a)

In the nucleus

b)

In the electron cloud

c)

In the space between the nucleus and the electrons

d)

In the neutrons

18.
What charge does an atom have if it GAINS an electrons?
a)

Positive (+)

b)

Negative (-)

c)

atoms can not gain electrons

19.
Oxygen with a negative two charge is an example of
a)

a cation

b)

an anion

c)

a polar molecule

d)

a nonpolar molecule

20.
An ionic bond is formed between
a)

2 nonmetals

b)

a metal and a nonmetal

c)

2 metals

d)

2 polar molecules

21.
An atom containing 19 protons, 20 neutrons, and 19 electrons has a mass number of 
a)

19

b)

20

c)

39

d)

58

22.
What is the formula for magnesium chloride?
a)

MgCl

b)

Mg2Cl

c)

MgCl2

d)

Mg(ClO3)2

23.

What group in the periodic table are the alkali metals found?

a)

I

b)

II

c)

III

d)

VII

24.

Which of the following elements is a metalloid?

a)

Nitrogen

b)

Carbon

c)

Aluminium

d)

Silicon

25.

The atomic radius increases....

a)

across a period

b)

down a group

c)

diagonally up towards the top right hand side of the periodic table

d)

occasionally depending on the conditions of the element

26.

What is electronegativity?

a)

The negative charge on an atom

b)

The "electron pulling" power of an ion

c)

The measure of the "electron pulling" power of an atom towards another atoms electrons

d)

The total negative charge of the electrons in an neutral atom

27.

What is a cation?

a)

An ion

b)

A negative ion

c)

A positive ion

d)

An atom that has gained electrons

28.

What is the formula of manganese (II) oxide

a)

MgO

b)

MnO

c)

MgO2

d)

Mn2O

29.

What is the correct name for FeCl3?

a)

Iron chloride

b)

Iron trichloride

c)

Iron (III) chloride

d)

Fluorine trichloride

30.

What is the correct name for the following substance: P4S5?

a)

Phosphorus pentasulfide

b)

Tetraphosphorus pentasulfide

c)

Tetraphosphorus pentasulfur

d)

Phosphorus sulfide

31.

What are the building blocks of matter?

a)

Atoms

b)

Protons

c)

Cells

d)

Neutrons

32.

The image shows the periodic grid of potassium. How many electrons are found in the potassium atom?

a)

19

b)

20

c)

39

d)

40

33.

When two elements combine with each other to form more than one compound, the mass of one element that combine with a fixed mass of the other are in a ratio of whole numbers.

a)

Law of Definite Composition

b)

Law of Multiple Proportions

c)

Law of Mass Conservation

d)

Law of Constant Composition

34.

Which of the following best describes isotopes?

a)

Isotopes have different numbers of neutrons.

b)

Isotopes have different numbers of protons.

c)

Isotopes are atoms of the same element with the same mass.

d)

Isotopes have different numbers of electrons.

35.

What is the chemical name of Fe2(SO4)3?

a)

Iron (III) Sulfate

b)

Iron Sulfate

c)

Iron (II) Sulfate (III)

d)

Iron (II) Sulfate

36.

If your cation is a transition metal, it should have a _________________.

a)

Roman numeral

b)

Subscript

c)

Polyatomic Ion

d)

Prefix

37.

the flow of _____ from one atom to another is called electricity.

a)

neutrons

b)

electrons

38.

Atoms combine to form _____.

a)

electrons

b)

neutrons

c)

protons

d)

molecules

39.

Different atoms have different numbers of _____.

a)

protons

b)

neutrons

c)

molecules

40.

A(n) _____ physicist studies what's inside of atoms.

a)

quantum

b)

nuclear

c)

theoretical

41.
What are the 3 particles that make-up the atom?
a)

protons, neutrons, and isotopes

b)

neutrons, isotopes, and electrons

c)

positives, negatives, and electrons

d)

protons, neutrons, and electrons

42.
What is the basic unit of matter and is the smallest particle of an element?
a)

Atoms

b)

Elements

c)

Compounds

d)

Molecules

43.
How many carbon atoms are there in a methane molecule? 
a)

0

b)

1

c)

4

d)

5

44.
Carbon dioxide (CO2) contains how many atoms of oxygen?
a)

0

b)

1

c)

2

d)

3

45.
How many hydrogen atoms are in a molecule of glucose/sugar (C6H12O6)?
a)

6

b)

12

c)

18

d)

24

46.
Most of the elements on the periodic table are classified as _____.
a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Periods

47.
This class of elements are sometimes called "semiconductors."
a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Groups

48.

Which of the following are the three major groups of elements in the periodic table?

a)

Metals, non-metals, metalloids

b)

Metals, conductors, metalloids

c)

Metals, conductors, insulators

d)

Non-metals, conductors, insulators

49.

What does the C represent?

a)

atomic mass

b)

atomic number

c)

element name

d)

chemical symbol

50.

What does the 6 represent?

a)

atomic mass

b)

atomic number

c)

element name

d)

chemical symbol

51.

What does 12.011 represent?

a)

atomic mass

b)

atomic number

c)

element name

d)

chemical symbol

52.

The Modern Periodic Table of Elements is arranged by

a)

atomic mass

b)

atomic number

c)

valence electrons

d)

number of isotopes

53.

Which group of the periodic table is Neon a part of?

answer choices

a)

alkali metals

b)

alkaline earth metals

c)

halogens

d)

noble gases

54.
How many protons are in this element?
a)

79

b)

196

c)

117

d)

Cannot be determined

55.

The rows going across the Periodic Table of Elements

a)

Periods

b)

Groups

c)

Families

d)

Rows

56.

The columns that go up and down on the periodic table of elements

a)

Period

b)

Metals

c)

Mass Number

d)

Group

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