A neutral atom of the isotope 26 12 Mg would consist of

12 protons, 14 neutrons, 12 electrons

12 protons, 26 neutrons, 26 electrons

26 protons, 12 neutrons, 26 electrons

26 protons, 14 neutrons, 14 electrons

Which of the following statements regarding subatomic particles is incorrect?

The relative mass of the proton, electron and neutron the same.

Protons are positively charged particles and neutrons have no charge.

In a neutral atom the number of protons equals the number of electrons.

Isotopes of an element have the same number of protons but a different number of neutrons.

What is the structure of a krypton-85 atom?

36 electrons, 36 protons, and 49 neutrons

49 electrons, 49 protons, and 49 neutrons

49 electrons, 49 protons, and 85 neutrons

36 electrons, 36 protons, and 85 neutrons

Isotopes

Quiz

•

Chemistry

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-1, HS-PS1-8

Standards-aligned

Lauren Wells

Used 17+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many neutrons does the isotope of lithium have?

8

3

4

5

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many protons does this isotope of titanium have?

48

22

26

70

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What quantities vary between isotopes of an element?

protons, electrons, and atomic mass

protons, electrons, and atomic number

neutrons and electrons

neutrons and atomic mass

Tags

NGSS.HS-PS1-8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

which atom has 4 neutrons?

Li-6

Li-7

Li-8

they have the same # of neutrons

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

What is an isotope?

A charged atom

An atom with different amounts of neutrons

An atom with different amounts of protons

A neutral atom

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many neutrons does a Sodium 24 isotope have?

12

13

14

15

Tags

NGSS.MS-PS1-1

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Isotopes

15 questions

What do these isotopes of carbon all have in common?

How many neutrons does the isotope of lithium have?

How many protons does this isotope of titanium have?

What quantities vary between isotopes of an element?

which atom has 4 neutrons?

What is an isotope?

How many neutrons does a Sodium 24 isotope have?

What is the atomic mass of the pictured isotope?

What is the name of the pictured isotope?

12 protons and 13 neutrons

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