Chemistry: Semester 2 Final Exam (in progress)

Refer to the Periodic Table of Elements shown above. Which element group has physical and chemical properties of metals?

• group 7A, the halogens

• group 4A, the carbon group

• group 1A, the alkali metals

• group 6A, the oxygen group

Cadmium (Cd) is a metal, a shiny solid at room temperature and conductor of heat and electricity. Which of the elements listed below shares these properties?

• palladium (Pd)

• xenon (Xe)

• fluorine (F)

• neon (Ne)

Silicon (Si) is a metalloid, with physical and chemical properties of both metals and nonmetals. Which of the elements listed below is also a metalloid?

• zinc (Zn)

• aluminum (Al)

• boron (B)

• zirconium (Zr)

Phosphorus (P) is a nonmetal, which is a poor conductor of heat and electricity. Which of the elements listed below shares these properties?

• strontium (Sr)

• sodium (Na)

• iodine (I)

• calcium (Ca)

Refer to the Periodic Table of Elements shown above. The size of the atoms of elements changes in a predictable way from left to right across periods, as well as up and down through groups. The image below shows these general trends. Based on this information, which of these elements has atoms with the largest atomic radii?

• gallium (Ga)

• germanium (Ge)

• arsenic (As)

• selenium (Se)

Which of these elements has the same number of valence electrons as neon (Ne)?

• chlorine (Cl)

• xenon (Xe)

• iodine (I)

• zinc (Zn)

Refer to the Periodic Table of Elements shown above. The element rubidium (Rb) is most likely to react with the element ...

• iodine (I)

• cadmium (Cd)

• chromium (Cr)

• silver (Ag)

Atoms of which of the following elements will become most stable by gaining one electron?

• strontium (Sr)

• potassium (K)

• bromine (Br)

• gallium (Ga)

Refer to the Periodic Table of Elements shown above. Which of these elements has atoms with the same outer energy level configuration as atoms of the element aluminum (Al)?

• sulfur (S)

• beryllium (Be)

• silicon (Si)

• gallium (Ga)

When an atom of the element carbon (C) bonds with an atom of oxygen (O), ____.

• a hydrogen bond is formed

• the atoms are bound by a metallic bond

• a covalent bond is formed

• an ionic bond is formed