A-level Chemistry chapter 1 - Atomic structure

What subatomic particles would you find in the nucleus of an atom?

• Protons only
• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons 

Tags

NGSS.MS-PS1-1

If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?

• 12 neutrons
• 12 electrons
• 12 protons
• 24 protons and neutrons

Tags

NGSS.MS-PS1-1

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

• 20
• 10
• 5
• 25

Tags

NGSS.MS-PS1-1

An element with a mass number of 11 and an atomic number of 5 has how many neutrons?

• 11
• 5
• 6
• 16

Tags

NGSS.MS-PS1-1

What is the atomic mass of the atom pictured? 

• 9
• 10
• 18
• 19

What is the atomic number of the atom pictured? 

• 9
• 10
• 18
• 19

Tags

NGSS.HS-PS1-1

Which scientist conducted experiments using alpha particles and thin gold foil, which later helped him develop his model for the atom? 

• Ernest Rutherford
• Kneels Bore
• Niels Bohr
• Earnest Rutherfraud

Tags

NGSS.HS-PS1-8

An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to

• 2 amu
• 3 amu
• 4 amu
• 5 amu

What is the mass of a proton and a neutron?

• 1amu
• 2grams
• 13amu
• 10cm

What are the maximum number of electrons that go on the first 3 energy levels?

• 2,4,16
• 2,8,18
• 4,8,12
• 3,4,6

Tags

NGSS.MS-PS1-1