SJI 9 SCIENCE TERMS

What is the term for the chemical symbol of an element surrounded by dots equal to the number of valence electrons?

• Ionic Bond

• Lewis Dot Structure

• Covalent Bond

• Electronegativity

What do we call the electrons in the outermost shell of an atom?

• Core Electrons

• Proton Electrons

• Valence Electrons

• Neutron Electrons

What term indicates the number of electrons in an element's outermost energy shell?

• Period Number

• Atomic Mass

• Group Number

• Electron Affinity

What term indicates the number of shells of an element?

• Group Number

• Electronegativity

• Period Number

• Ionic Bond

What is the term for the American chemist who devised a system of dots called Lewis Electron Dot Structure?

• Albert Einstein

• Niels Bohr

• Gilbert Lewis

• Robert Hooke

What is the principle that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons to become stable?

• Electron Affinity

• Octet Rule

• Lewis Dot Structure

• Covalent Bond

What do we call atoms that have a full outer electron shell and are chemically stable, often found in group 18 of the periodic table?

• Transition Metals

• Halogens

• Noble Gases

• Alkaline Earth Metals

What is the term for positively charged ions that have more protons than electrons?

• Anions

• Cations

• Neutrons

• Isotopes

What do we call negatively charged ions that have more electrons than protons?

• Cations

• Anions

• Ions

• Molecules

What is the term for the ability to accept one or more electrons?

• Ionization

• Electronegativity

• Electron Affinity

• Atomic Radius