Atomic Composition

The atomic number of oxygen is

• 8

• 15.9994

• 16

• O

Tags

NGSS.MS-PS1-1

What does the nucleus of an atom contain?

• Electrons and neutrons

• Protons and neutrons

• Neutrinos and positrons

• DNA and RN

Tags

NGSS.MS-PS1-1

what does the 6 represent?

• Atomic mass

• atomic number

• element symbol

Tags

NGSS.MS-PS1-1

Which subatomic particle is negatively charged?

• Proton

• Neutron

• Electron

• Nucleus

What does the atomic number of an element ALWAYS represent?

• The number of neutrons

• The number of electrons in an atom

• The total number of protons and neutrons

• The number of protons

How many electrons can the first shell of an atom hold?

• 2

• 8

• 18

• 32

Which element has an atomic number of 1?

• Helium

• Hydrogen

• Oxygen

• Nitrogen

What is the maximum number of electrons that can occupy the second shell of an atom?

• 2

• 8

• 18

• 32

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

What is the atomic number of carbon?

• 6

• 12

• 14

• 8