M3 Science Review - MCQs

What subatomic particle determines the identity of an element?

• Neutron

• Electron

• Proton

• Ion

Where are the electrons located in an atom according to the modern model?

• In the nucleus

• In fixed circular paths

• In orbitals around the nucleus

• Mixed with neutrons

What is the atomic number of an atom that has 8 protons?

• 2

• 4

• 8

• 16

Which of these is found on the far right of the periodic table?

• Alkali metals

• Transition metals

• Halogens

• Noble gases

Which element is likely to be shiny, malleable, and a good conductor?

• Neon

• Oxygen

• Sodium

• Sulfur

Which particle in an atom has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus

Which element in Period 2 has five electrons?

• Nitrogen

• Oxygen

• Boron

• Carbon

Which group of the periodic table contains the most reactive metals?

• Group 2

• Group 1

• Group 8

• Group 7

What is the charge of a proton?

• 0

• +1

• 1

• +2

Which element has a full outer electron shell and is unreactive?

• Oxygen

• Fluorine

• Neon

• Hydrogen