Counting Subatomic Particles Review

How is the number of neutrons of an atom calculated

• Mass Number - Atomic Number

• Electrons + Protons

• Mass Number + Electrons

• Protons - Electrons

How many protons, electrons, and neutrons does an atom with an atomic number of 50 and a mass number of 125 contain?

• 75 protons, 50 electrons, and 70 neutrons

• 50 protons, 50 electrons, and 75 neutrons

• 50 protons, 75 electrons, and 120 neutrons

• 50 protons, 75 electrons, and 50 neutrons

Tags

NGSS.MS-PS1-1

An industrially important element contains 26 electrons and rusts in the presence of air and moisture. Identify the element.

• Lead

• Copper

• Sodium

• Iron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons are present in an atom of Be-9

• 2

• 4

• 5

• 9

At atom of Germanium as an atomic number of 32 and a mass number of 73. How many protons, electrons, and neutrons are found in atom of Germanium?

• P: 41 E: 32 N: 32

• P: 32 E: 41 N: 41

• P: 32 E: 32 N: 41

• P: 32 E: 32 N: 73

Tags

NGSS.MS-PS1-1

Use the Periodic Table to answer the missing information in the table. What is the Atomic Number of Copper?

• 4

• 29

• 35

• 64

Tags

NGSS.MS-PS1-1

Use the Periodic Table to answer the missing information in the table. What is the Atomic Mass of Copper?

• 4

• 29

• 35

• 64

Use the Periodic Table to answer the missing information in the table. What is the Number of Protons of Copper?

• 4

• 29

• 35

• 64

Tags

NGSS.MS-PS1-1

Use the Periodic Table to answer the missing information in the table. What is the Number of Electrons of Copper?

• 4

• 29

• 35

• 64

Tags

NGSS.MS-PS1-1

Use the Periodic Table to answer the missing information in the table. What is the Number of Neutrons of Copper?

• 4

• 29

• 35

• 64

Tags

NGSS.MS-PS1-1