atoms isotopes and average atomic mass

How many neutrons in C-14?

• 6
• 7
• 14
• 8

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

How many neutrons does uranium-235 have?

• 238
• 92
• 146
• 143

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

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

which atom has  4 neutrons?

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

Tags

NGSS.MS-PS1-1

What is found in the nucleus of an atom?

• protons and electrons

• protons and neutrons

• neutrons and protons

• electrons and neutrons

Tags

NGSS.HS-PS1-8

The atomic number on the periodic table tells you the number of...

• protons

• neutrons

• electrons

• quarks

What is the atomic mass of sodium?

• 11

• 16

• 32.06

• 22.99

What element is this?

• Hydrogen

• Helium

• Lithium

• Carbon

Tags

NGSS.HS-PS1-1