-
What is the charge on an electron?
Electrons are negatively charged.
-
What are valence electrons?
Electrons in outermost shell
-
Where are protons located?
Protons are in the nucleus of the atom.
-
Are the elements on the table today arranged by atomic number or atomic mass
Today, table is arranged by atomic number
-
Give 4 properties of metals
- Malleable
- Ductile
- Conductor of heat
- Conductor of electricity
- Luster
-
Give 3 properties of nonmetals
- Brittle
- Nonconductor of heat
- Nonconductor of electricity
-
Give the name and symbol of all the metalloids
B:Boron, Si:Silicon, Ge:Germanium, As:Arsenic, Sb: Antimony, Te: Tellurium
-
H. Mosely proposed elements are unique due to the number of what subatomic particle?
Number of protons make each element unique
-
Who is credited with creating the Periodic Table?
Demitri Mendeleev
-
What does "periodicity" mean?
A repeating pattern
-
What is 'transmutation'?
When one element is transformed into another, usually by bombarding the nucleus with high speed particles
-
What are substances that are different forms of the same element with different physical and chemical properties?
Allotropes
-
Give examples of allotropes of Carbon
Allotropes of Carbon include graphite, coal, and diamonds.
-
Give examples of allotropes of oxygen
Allotropes of oxygen are O2 gas and O3 ozone.
-
What does the symbol (aq) mean?
(aq) means a substance dissolved in water to produce a solution.
-
Are the Families of the periodic table the horizontal rows or the vertical groups?
Families are the vertical groups
-
What do all members of a group have in common?
Members of a group on the periodic table all have the same number of valence electrons.
-
What do all members of a period have in common?
All members of a period have the same number of electron shells.
-
Which group is the Alkali metals?
Group 1 is the Alkali metals.
-
What is the name of group 17?
Group 17 are the halogens
-
Which group are the noble gases?
Group 18 are the noble gases.
-
What does the term alkali or alkaline mean?
Alkaline are substances that are basic pH (above 7)
-
What is the name of Group 2?
Group 2 is the Alkaline Earth Metals.
-
What are the atomic numbers of the Lanthanides?
Atomic numbers 57 - 71 are Lanthanides.
-
What are the atomic numbers of the Actinides?
The Actinides are atomic numbers 89 - 103
-
What are groups 3 - 11 collectively called?
Groups 3 - 11 are the Transition Elements
-
What 2 elements are liquids at STP? Give names and symbols.
The two liquid elements are Hg:Mercury and Br2: Bromine
-
What group of elements' members are in compounds that often produced colored aqueous solutions?
Transition elements are in compounds that produce colored solutions.
-
What group contains a solid, a liquid and a gas at STP? Identify each element as well.
Group 17: F2 & Cl2 are gases, Br2 is liquid and I2 is solid.
-
What group's name means "salt former" ?
Group 17:Halogen means salt former.
-
What group of elements are so reactive they are never found in nature in the pure state ?(always in cmpds)
Group 1:Alkali metals are always in compounds, never in the free state in nature.
-
What group of elements are unreactive or inert?
Group 18: Noble gases are unreactive. (Note Kr & Xe are exceptions in extreme conditions)
-
What 11 elements are gases?
H:Hydrogen, N:Nitrogen, O: Oxygen, F:Fluorine, Cl:Chlorine, He:Helium, Ne:Neon, Ar:Argon, Kr:Krypton, Xe: Xenon, and Rn: Radon
|
|
