Which list of elements consists of a metal, a metalloid, and a nonmetal?

• Li, Na, Rb
• Sn, Si, C
• Cr, Mo, W
• O, S, Te

Which characteristics both generally decrease when the elements in Period 3 on the Periodic Table are considered in order from left to right?

• Nonmetallic properties and atomic radius
• Nonmetallic properties and ionization energy
• Metallic properties and atomic radius
• Metallic properties and ionization energy

Elements on the most current periodic table are arranged based on

• Atomic number
• Electron Configuration
• Both of the above
• None of the above

Which phrase best describes the elements in Group 1 of the Periodic Table?

• Group 1 is classified as metals and called the Alkaline earth metals
• Group 1 is classified as metalloids and called Alkali metals
• Group 1 is classified as metals and called Transition metals
• Group 1 is classified as metals and called Alkali Metals

Which list includes elements with the most similar chemical properties?

• Br, Ga, Hg
• O, S, Se
• Cr, Pb, Xe
• N, O, F

What are valence electrons?

• Subatomic particles that are found in the nucleus of the atom.
• Subatomic particles that are outside of the nucleus.
• Subatomic particles that are found in space.
• Subatomic particles that are found in the outermost energy level.

An element that has a low first ionization and good conductivity of heat and electricity is classified as a

• Metal
• Noble Gas
• Metalloid
• Nonmetal

Which element has chemical properties that are most similar to the chemical properties of fluorine?

• Boron
• Neon
• Chlorine
• Oxygen

At standard conditions, which element is solid, brittle, and a poor conductor of electricity?

• Al
• K
• Ne
• S

Which statement explains why neon is a Group 18 element?

• Neon is a gas at STP
• Neon has a low melting point
• Neon atoms have a stable valence electron configuration
• Neon atoms have two electrons in the first shell