Atomic Structure

Which correctly pairs the subatomic particle with its charge?

• protons: negative

• neutrons: negative

• electrons: negative

• neutrons: positive

Which correctly pairs the subatomic particle with its charge?

• protons: positive

• neutrons: negative

• electrons: neutral

• protons: negative

Which correctly pairs the subatomic particle with its charge?

• protons: neutral

• neutrons: neutral

• electrons: positive

• protons: negative

Which subatomic particles are found in the nucleus of an atom?

• protons & neutrons

• protons & electrons

• neutrons & electrons

• protons only

Which subatomic particles contribute to the mass of an atom?

• electrons & protons

• electrons & neutrons

• protons & neutrons

• protons only

Which subatomic particles determine the overall charge of an atom?

• protons & neutrons

• protons only

• electrons only

• protons & electrons

Which subatomic particle determines the charge of the nucleus?

• proton

• neutron

• electron

• protons & neutrons

An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom have?

• 30

• 56

• 26

• 82

What is the region around the nucleus of an atom where electrons might be found?

• orbital zone

• nucleus

• electron cloud

• subatomic lanes

Oxygen's atomic number is 8. That means that an oxygen atom has -

• a total of 8 protons and neutrons

• a total of 8 neutrons and electrons

• 8 valence electrons

• 8 protons in its nucleus