Physical Science 1113 Test
Transition elements:
subgroups on table, can become magnetic, electron donor, electrons in d sublevel, usually colored
Elements in Group IIA have _____valence electrons; elements in Subgroup VB have _____ valence electrons.
2......5
The groups are designated with a Roman numeral and the letter ______; the subgroups are designated with a Roman numeral and the letter __.
A.....B
barium
Ba
beryllium
Be
Write the chemical symbols for the alkaline-earth metals
Be, Mg, Ca, Sr, Ba, Ra
calcium hydroxide
Ca(OH)2
calcium ion
Ca++
copper
Cu
Write the chemical symbols for the elements of the Copper Family
Cu, Ag, Au
Write the chemical symbols for the elements of the Platinum Family
Ru, Rh, Pd, Os, Ir, Pt
Write the chemical symbols for the transition elements whose only valence is 2.
Sc, Y, La, Ac
What are the three most important properties of aluminum?
strength, light weight, and resistance
Alkali metals:
valence of 1, found in Group IA, never found in a free state, often stored in nonreactive substance, alkali metal + H2O --> base + H2^
Alkaline-earth metals:
valence of 2, found in Group IIA, never found in a free state, alkaline-earth metal + H2O --> base + H2^
precipitate
⬇️
Write the chemical symbols for the transition elements of Period 5
Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd
Some ______ are specifically made to be both strong and light.
alloys
List the metalloids by name and chemical symbol.
boron, silicon, germanium, Arsenic, Antimony, Tellurium, Polonium
Rare gases are called noble gasses and elements of the Platinum Family are called noble metals because they show little ___________.
chemical reactivity
All metals are electron _________.
donors
iron
Fe
Write the chemical symbols for the elements of the Iron Family
Fe, Co, Ni
Why are there three columns in Subgroup VIIIB
Iron, Cobalt, and Nickel have similar properties.
potassium
K
Write the chemical symbols for the alkali metals
Li, Na, K, Rb, Cs, Fr
Write the chemical symbols for the Group VA elements with a valence of 5.
N, P, As, Sb, Bi
sodium
Na
List physical properties of metals:
ductility, malleability, plastic deformation, metallic luster, electrical conductivity, high melting temperature, thermal conductivity
The short electron configuration for francium is (Rn)7s2. In this configuration, (Rn) replaces the _______.
electron configuration for the element radon
Elements are placed on the periodic table on the basis of their ______ and ______ properties.
physical....chemical
A ______ is an arrangement of two s and six p electrons in a valence level.
stable octet
All elements are _______, _______, or ________.
metals....nonmetal...metalloids
Hard water contains a high concentration of ______ and ______ ions.
Ca++........Ma++
calcium carbonate
CaCO3
calcium sulfate
CaSO4
Write the chemical symbols for the elements of the Zinc Subgroup.
Zn, Cd, Hg
