Free Printable Subatomic Particles Practice MR

Worksheets

Subatomic Particles Practice MR

Total questions: 76

Worksheet time: 2hrs 14mins

Name

Class

Date

How many protons in a neutral cesium-134 atom?

How many protons in a neutral scandium-46 atom?

How many neutrons in a neutral scandium-46 atom?

How many neutrons in a neutral radon-222 atom?

How many electrons in a neutral scandium-46 atom?

How many neutrons in a neutral cesium-134 atom?

How many neutrons in a neutral zinc-64 atom?

How many electrons in a neutral zinc-64 atom?

How many protons in a neutral zinc-64 atom?

10.

How many electrons in a neutral cesium-134 atom?

11.

How many protons do all isotopes of magnesium (Mg) have?

12.

How many protons and electrons would a neutral atom of Ne have?

13.

How many protons and electrons would a neutral atom of tungsten have?

14.

How many protons and electrons would a neutral atom of Sr have?

15.

What is the mass number for the most common isotope of cesium?

16.

What is the mass number for the most common isotope of iron?

17.

What is the mass number for the most common isotope of aluminum?

18.

What is the mass number for the most common isotope of sodium ?

19.

What is the mass number for the most common isotope of Sc?

20.

How many protons and electrons would a neutral atom of cobalt have?

21.

How many protons and electrons would a neutral atom of V have?

22.

How many protons and electrons would a neutral atom of oxygen have?

23.

The most common isotope of Ne is neon-22.

True

False

24.

The most common isotope of Ca is calcium-40.

True

False

25.

The most common isotope of F is fluorine-19.

True

False

26.

The most common isotope of Ti is titanium-49.

True

False

27.

Categorize these particles as neutral atoms, positive ions or negative ions.

Categorize the following

9 protons, 10 neutrons, 9 electrons

10 protons, 11 neutrons, 9 electrons

15 protons, 16 neutrons, 18 electrons

$Co$

$Ca^{+2}$

$Cl^{-1}$

particle with more electrons than protons

particle with more protons than electrons

particle with equal numbers of protons and electrons

neutral atom

positive ion

negative ion

28.

Calculate the atomic number of an atom with:
2 protons
3 neutrons
4 electrons

29.

Calculate the atomic number of an atom with:
10 protons
11 neutrons
11 electrons

30.

Calculate the mass number of an atom with:
10 protons
11 neutrons
11 electrons

31.

Calculate the mass number of an atom with:
2 protons
3 neutrons
4 electrons

32.

How many neutrons does this isotope have?

33.

How many protons does this isotope have?

34.

What is the mass number of this isotope?

35.

What is the mass number of this isotope?

36.

How many neutrons in this isotope?

37.

What is the mass number of this isotope?

38.

How many neutrons are present in this isotope?

39.

Label the isotopes with the correct description.

Isotope with 5 neutrons

Most common isotope

Isotope with 3 neutrons

40.

Isotopes are atoms of the same element with different #’s of __________ & therefore different __________.

n⁰ ; atomic #’s

p⁺ ; atomic #’s

e^- ; atomic masses

n⁰ ; mass nummbers

41.

Nickel-59 has how many neutrons?

42.

If X is the symbol for an element, which of the following two symbols represent isotopes of the same element?
I. ⁷⁷₃₅X II. ⁷⁷₃₃X III. ⁸¹₃₇X IV. ⁸¹₃₅X

I and II

III and IV

I and IV

I and III

43.

Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208. The average atomic mass of lead is 207.2. Which isotope of lead is likely to be the most abundant.

204

206

207

208

44.

In a correctly written symbol what would be located in the "A" position?

number of neutrons

atomic number

number of electrons

mass number

45.

How many neutrons does the isotope below have? ⁸⁹ ₃₆Kr

125

46.

What is the name of the pictured isotope?

Chlorine-Schmorine

Chlorine-17

Chlorine-35

Chlorine-18

47.

What is the name of the pictured isotope?

Copper-29

Copper-63

Copper-34

CopperWopperHopperBopper

48.

If an atom gains an electron it is a(n)

Positive ion

Negative ion

Isotope

Neutral Atom

49.

If an atom loses an electron it is a(n)

Positive ion

Negative ion

Isotope

Neutral Atom

50.

How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?

51.

Write the hyphen notation for the isotope that has 39 protons and 50 neutrons.

Yttrium-11

Tin-39

Tin-89

Yttrium-89

52.

What is the number of neutrons?

53.

This particle determines the identity of an atom

proton

neutron

ion

isotope

54.

When two atoms of the same element have different masses, they are called ______, and have a different number of ______.

Neutrons; Isotopes

Atoms; Isotopes

Isotopes; Protons

Isotopes; Neutrons

55.

If a proton is added or removed from an atom, what happens?

It becomes a different element.

It becomes a different isotope.

Nothing happens.

It becomes a different ion.

56.

How many neutrons are in 1 atom of Carbon-13?

57.

What is the difference between Neon-20 and Neon-22?

They have different numbers of electrons.

They have different numbers of neutrons.

Only 1 is radioactive.

No difference.

58.

Which is the correct symbol for Fluorine-18?

59.

How many neutrons are in the isotope of sulfur, S³⁶?

60.

A neutron has what charge? (a)

Choose from the below words

Positive

Negative

Neutral

61.

Which particles are found in the nucleus of an atom?

protons only

neutrons only

protons & electrons

protons & neutrons

62.

What two subatomic particles have approximately the same mass?

electrons & neutrons

protons & electrons

neutrons & protons

63.

What is the lightest subatomic particle?

(a)

Choose from the below words

electron

proton

neutron

64.

How many protons, neutrons, and electrons are in the most common/abundant isotope of Oxygen?

Protons = 8; Neutrons = 16; Electrons = 8

Protons = 8; Neutrons = 8; Electrons = 8

Protons = 16; Neutrons = 8; Electrons = 16

Protons = 16; Neutrons = 24; Electrons = 16

65.

The subatomic particle with a negative charge

proton

neutron

electron

nucleus

66.

the extremely dense center of an atom

proton

neutron

electron

nucleus

67.

Atoms of the same element that have a different number of neutrons

isotopes

atomic mass

atomic number

mass number

68.

The weighted average mass of all isotopes of an element

atomic number

atomic mass

chemical symbol

mass number

69.

one or two letter symbol that represents the element

atomic number

atomic mass

chemical symbol

mass number

70.

What does the arrow pointing to 8 represent

atomic number

chemical symbol

element name

atomic mass

71.

What does the arrow pointing to 15.999 represent

atomic number

chemical symbol

element name

atomic mass

72.

True or False. There are the same # of protons and electron in an atom?

True

False

73.

Where is the proton located?

In the very dense nucleus

Floating around in the negative electron cloud

the loose nucleus

the positive electron cloud

74.

In an atom, what is the number of protons equal to?

The number of electrons.

The number of neutrons.

The number of molecules.

The number of nuclei.

75.

Which of the following determines the type of element that an atom makes?

The size of the nucleus.

The number of protons.

The number of electrons.

The number of neutrons.

76.

The number of neutrons equals...

atomic number - mass number

Protons - neutrons

Electrons - protons

mass number - atomic number

Reset

Subatomic Particles Practice MR

Total questions: 76

Worksheet time: 2hrs 14mins

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