2.12 CW Unit 2 Review - Atom and PT

Which list of elements is arranged in order of increasing atomic radii?

• Li, Be, B, C

• Sr, Ca, Mg, Be

• Sc, Ti, V, Cr

• F, Cl, Br, I

Tags

NGSS.HS-PS1-1

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

• Zn, Ga, Ge

• Si, Ge, Sn

• Cd, Sb, I

• F, Cl, Br

Which list includes elements with the most similar chemical properties?

• Br, Ga, Hg

• Cr, Pb, Xe

• O, S, Se

• N, O, F

Tags

NGSS.HS-PS1-1

Which list of elements is arranged in order of increasing electronegativity?

• Be, Mg, Ca

• F, Cl, Br

• K, Ca, Sc

• Li, Na, K

Tags

NGSS.HS-PS1-1

The elements on the Periodic Table are arranged in order of increasing

• boiling point

• electronegativity

• atomic number

• atomic mass

As the elements of Period 2 are considered in succession from left to right, there is a general decrease in

• ionization energy

• electronegativity

• metallic character

• nonmetallic character

The strength of an atom's attraction for the electrons in a chemical bond is the atom's

• electronegativity

• ionization energy

• heat of reaction

• heat of formation

The amount of energy required to remove the outermost electron from a gaseous atom in the ground state is known as

• first ionization energy

• activation energy

• conductivity

• electronegativity

Tags

NGSS.HS-PS1-1

Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl?

• Electronegativity increases, and first ionization energy decreases.

• Electronegativity decreases, and first ionization energy increases.

• Electronegativity and first ionization energy both increase.

• Electronegativity and first ionization energy both decrease.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element can be brittle or soft in the solid phase and is a poor conductor of heat and electricity?

• calcium

• sulfur

• strontium

• copper