Chemistry Ch 5 Practice Test Pt II

What can be removed from an atom if ionization energy is supplied?

an electron

An element that has the electron configuration [Ne] 3s2 3p5 is in Group

17

An element that has the electron configuration [Ne] 3s2 3p5 is in Period

3

One of the least electronegative elements would be found on the periodic table in

Group 1, Period 7

An element with the smallest anionic (negative-ionic) radius would be found on the periodic table in

Group 17, Period 2

In which group is an element that has an outer-level electron configuration consisting of one electron in the d orbital and two electrons in the ns orbital?

Group 3

To which group does hydrogen belong? (Out of Group 1, Group 2, Group 18)

None of the above

In nature, the alkali metals are found only in compounds because they

are very reactive elements

Across a period in the periodic table, atomic radii generally

decrease

The atomic radius of an atom that is chemically bonded to an identical atom is equal to

half the distance between the nuclei

Nonmetallic elements in Group 17 that react with most metals to form salts are

halogens

As the atomic numbers of the metals of Group 1 increase, the ionic radii

increase

Down a group in the periodic table, atomic radii generally

increase

Across a period in the periodic table, ionization energy generally

increases

Down a group in the periodic table, the change in ionization energy is due to

increasing electron shielding

Elements in the s and p blocks of the periodic table are called

main-group elements

An element found in groups 3-12 of the periodic table is classified as a

transition metal

The outer-level electron configuration of a neutral alkaline-earth metal atom consists of

two electrons in the s orbital

An electron that is in the highest energy level of an atom and determines the atom's chemical properties is called a

valence electron

Elements in Group 18 have

very low reactivity