Isotopes

What do these isotopes of carbon all have in common?

• neutrons & mass number

• atomic number, electrons and neutrons

• atomic number, protons and electrons

• protons, atomic number, and mass number

Tags

NGSS.MS-PS1-1

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

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

• number of neutrons
• atomic number
• number of electrons 
• mass number

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

Which atom has 4 neutrons?

• Li-6

• Li-7

• Li-8

• they have the same # of neutrons

Tags

NGSS.MS-PS1-1

How many neutrons in C-14?

• 6
• 7
• 14
• 8

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

• neutrons ; atomic #’s

• protons ; atomic #’s

• electrons ; atomic masses

• neutrons; atomic masses

How many neutrons does this isotope have? ⁸⁹ ₃₆Kr

• 53

• 36

• 89

• 125

Tags

NGSS.HS-PS1-8

How many neutrons does an atom of the isotope Neon-22 have?

• 12
• 10
• 22
• 20