Distinguishing Among Atoms

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

How many neutrons does this 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

Tags

NGSS.MS-PS1-1

which atom has  4 neutrons?

• Li-6
• Li-7
• Li-8
• they have the same # of neutrons

Tags

NGSS.MS-PS1-1

A boron (chemical symbol: B, element #5) atom has an atomic number of 5 and a mass number of 11. What is true about this boron atom?

• It has 11 protons.

• It has 11 neutrons.

• It has 5 protons.

• It has 5 neutrons.

Tags

NGSS.MS-PS1-1

What is the mass number defined as?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

What is the mass number of this atom?

• 1

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

Calcium has three different isotopes, Calcium-35, Calcium 41 and Calcium-40, if the atomic mass of Calcium is 40.078 amu, which of the isotopes is more abundant

• Calcium - 40

• Calcium - 41.

• Calcium-35

• impossible to tell

Tags

NGSS.HS-PS1-8

In the shorthand notation for a copper atom shown, what does the 63 stand for?

• It is the atomic number of copper.

• It is the mass number of copper.

• It is the number of neutrons in copper.

• It is the number of protons in copper.

Tags

NGSS.MS-PS1-1

^{The photo above shows the isotopic notation for which isotope?}

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

Tags

NGSS.MS-PS1-1