Isotopes 10/5

How many neutrons in C-14?

• 6
• 7
• 14
• 8

Tags

NGSS.MS-PS1-1

How many neutrons does uranium-235 have?

• 238
• 92
• 146
• 143

Tags

NGSS.MS-PS1-1

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

Tags

NGSS.MS-PS1-1

What element is this?  What is the mass number of this atom?

• sodium, 23
• magnesium, 23
• magnesium, 12
• sodium, 11

Tags

NGSS.MS-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

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.MS-PS1-1

Which particle does not contribute mass to the atom?

• Proton
• Neutron
• Electron
• Nucleus

Iron-60 (atomic number 26) is an isotope that is often used to study meteorites.  How many neutrons does iron-60 have?

• 26
• 60
• 34
• 86

Tags

NGSS.HS-PS1-8

Atom 1- Protons=17  Neutrons=19
Atom 2- Atomic #= 18 Mass= 40 Electrons=18
Are these atoms isotopes of each other or different elements?

• Different Elements - Cl & Ar
• Different Elements - K & Ti
• Isotopes of Argon
• Isotopes of Potassium

Tags

NGSS.HS-PS1-8

What is the mass number of this atom?

• 1
• 3
• 4
• 7

Tags

NGSS.MS-PS1-1