periodic table

Question 1

group 1, 1 valence electrons, +1 common charge, most reactive of the metals, good conductors of electricity and are soft and shiny.

Answer 1

Alkali Metals

Question 2

group 2, 2 valence electrons, +2 common charge, similar to alkali metals but are harder and have higher melting points. Slightly less reactive than group 1. Tend to be found in compounds.

Answer 2

Alkaline Earth Metals

Question 3

group 17, 7 valence electrons, -1 common charge, most reactive non-metal, forms salt when reacting with metals, Diatomic gasses: F, Cl. Liquid: Br. Solids: I, At

Answer 3

Halogens

Question 4

group 18, 8 valence electrons (helium has 2), 0 common charge, low reactivity and are monatomic gasses. Gasses include all of the furthest right elements besides bottom three (Uuo, Lu, Lr).

Answer 4

Noble Gasses

Question 5

groups 3-12, do not have identical outer electron configurations, so charges are not predictable. Generally less reactive than alkali and alkaline4earth metals. Good conductors of heat and electricity.

Answer 5

Transition Metals

Question 6

exhibit properties of both metals and nonmetals, are solids, are not lustrous, conduct heat and electricity moderately well.

Answer 6

Mellatoids

Question 7

The two elements that are liquids at room temperature are

Answer 7

Bromine (Br) and Mercury (Hg).

Question 8

The eleven elements that are gaseous at room temperature are

Answer 8

Hydrogen, Helium, Nitrogen, Oxygen, Flourine, Chlorine, Neon, Argon, Krypton, Xenon and Radon.

Question 9

Diatomic Gasses are

Answer 9

hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine and Bromine.