Science 8 Vocab

What is the fundamental force responsible for interactions between charged particles?

• Gravitational Force

• Electromagnetic Force

• Nuclear Force

• Frictional Force

What are particles smaller than atoms, including protons, neutrons, and electrons, called?

• Molecules

• Compounds

• Subatomic Particles

• Ions

What is a chemical compound made up of sodium and chlorine ions commonly known as?

• Sugar

• Water

• Sodium Chloride

• Carbon Dioxide

What is the region around the nucleus of an atom where electrons are likely to be found called?

• Electron Cloud

• Atomic Shell

• Proton Field

• Neutron Zone

What type of bond is formed by the sharing of electron pairs between atoms?

• Ionic Bond

• Metallic Bond

• Covalent Bond

• Hydrogen Bond

What is the fixed energy state of electrons in an atom called?

• Atomic Mass

• Energy Level

• Ionic Bond

• Orbital

Which atom is essential for respiration and has eight protons in its nucleus?

• Hydrogen Atom

• Carbon Atom

• Oxygen Atom

• Nitrogen Atom

What are the chemical elements in Group 18 of the periodic table known for?

• High reactivity

• Full valence electron shells

• Low atomic mass

• Metallic properties

What does the atomic mass of an atom represent?

• Number of electrons

• Number of protons only

• Total number of protons and neutrons

• Number of neutrons only

What type of bond is formed by the transfer of electrons between atoms?

• Covalent Bond

• Metallic Bond

• Ionic Bond

• Hydrogen Bond