Isotopes Check 2 10/6

Which number here is my atomic number?

• 5
• 10.811

How many protons does this atom have?

• 2.5
• 6
• 5
• 10.811

Tags

NGSS.MS-PS1-1

In order for me to find the number of neutrons, I must round the atomic mass and then do what?

• atomic number-atomic mass
• atomic number x atomic mass
• atomic mass + atomic number
• atomic mass - atomic number

How many protons does Pb-209 have?

• 127
• 209
• 82
• 291

Tags

NGSS.MS-PS1-1

How many neutrons would V-49 have?

• 26
• 49
• 23
• 50.94

Tags

NGSS.HS-PS1-8

How many protons does P-30 have?

• 30
• 16
• 12
• 15

Tags

NGSS.MS-PS1-1

What element has 42 protons?

• Ca
• Mo
• Zr
• Po

Tags

NGSS.HS-PS1-1

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