Post Lab Isotopes and Atomic Mass - RETAKE

What is the mass number of this nuclide?

• 9

• 13

• 8

• 4

Tags

NGSS.MS-PS1-1

Which isotope would have 9 neutrons?

• neon-20

• fluorine-17

• neon-19

• fluorine-19

Tags

NGSS.MS-PS1-1

Scandium is an element with the symbol Sc. Which of the following statements are true about the isotope Scandium-45?

• This isotope has 45 protons

• The atomic number of this isotope is 45

• This isotope has 45 neutrons

• This isotope's nucleus contains 45 subatomic particles

Tags

NGSS.MS-PS1-1

What is true about the carbon atom depicted in the image?

• This carbon atom has 13 protons

• The nucleus of this atom contains 7 particles

• The mass number of this carbon atom is 13

• The atomic number of this carbon atom is 13

Tags

NGSS.MS-PS1-1

What is the mass number of an ion that contains 7 protons, 9 neutrons, and 10 electrons?

• 7

• 17

• 16

• 19

Tags

NGSS.MS-PS1-1

An element has two naturally occurring isotopes with masses and abundances shown in the table. What is true about the average atomic mass of the element?

• The average atomic mass is exactly between the two isotope masses.

• The average atomic mass is closer to the mass of Isotope A than Isotope B.

• The average atomic mass is closer to the mass of Isotope B than Isotope A.

• The average atomic mass cannot be determined.

Tags

NGSS.MS-PS1-1

Different isotopes have...

• different masses
• different atomic numbers
• different electrons
• different protons

Tags

NGSS.MS-PS1-1

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

What is the name of the pictured isotope?

• Carbon-12
• Carbon-13
• Carbon-14
• Carbon-15

Tags

NGSS.MS-PS1-1