Messing with Atoms
These are the oxidation states of Niobium (Nb).
What is +3 and +5?
The Periodic table is organized into columns and rows known by these two names.
What are Periods and Groups?
The elements in the same group or column have ____________ properties.
What are Similar chemical and physical?
This happens to the atomic radius as you move down a group.
What is increases?
This is an explanation for the terms malleable and ductile.
What is Malleable is the ability to be pounded into thin sheets, while Ductile means it can be stretched into thin wire?
This person is credited with creating the first Periodic Table.
Who is Dmitri Mendeleev?
These are the names of the two series of elements pulled out from the main portion of the Periodic Table.
What are the Lanthanide and Actinide series?
This is the main reason why elements of the same group have similar properties.
What is they have the same number of valence electrons?
This happens to electronegativity/ionization energy as you move across a period.
What is increases?
This is a use for metalloids.
What are as Semi-conductors used in transistors and microchips in electronics?
This is Sodium’s (Na) oxidation state. This is what happens to Sodium’s Atomic Radius when it forms an ion.
What is +1 and its Atomic Radius decreases?
This piece of information on the periodic table determines the identity of any atom. It also reveals this about the atoms of that element.
What is Atomic number, which tells you the number of protons in the nucleus of the atom for any element?
Group 2 is better known by this name.
What are the Alkaline Earth Metals?
This is the trend for Atomic Radius as you move across a period.
What is decreases?
Name 2 properties of non-metals.
What is Low densities; Brittle and hard; Poor conductors of heat and electricity; High ionization energy and electronegativity?
These elements are the diatomics.
What is Have No Fear Of Ice Cold Beer?
Hydrogen (H), Nitrogen (N), Fluorine (F), Oxygen (O), Iodine (I), Chlorine (Cl), Bromine (Br).
These are the Synthetic Elements on the Periodic Table.
What are any Atomic Numbers 93 and greater, plus Technetium (Atomic #- 43), and Promethium (Atomic # - 61).
Give an element that would have similar properties to:
(a) Xenon (# 54)
(b) Bromine (# 35)
What is: Xenon- any element in Group 18
Bromine- any element in Group 17
This happens to the electronegativity/ionization energy as you move down a group.
What is decreases?
These are the six primary metalloids.
What are Boron (B), Silicon (Si), Germanium (Ge), Arsenic (As), Antimony (Sb), and Tellurium (Te)?
Name two things that have changed about the way the periodic table is organized since it was first created in the 1860s.
What is:
- Now organized by increasing Atomic Number (was based on Atomic Weight)?
- Groups organized by # of valence electrons (originally organized by just similar chemical properties - electrons hadn't been discovered yet)?
-Only 66 elements were originally known (now 118 known elements)?
- No Group 18 elements because they had not been discovered yet?
This is the name of the element found in Group 17, Period 3. Also, this is its atomic number, chemical symbol, and average atomic mass.
What is Chlorine, 17 (atomic #), Cl (symbol), and 35.45 atomic mass units.
These TWO groups contain the most reactive elements because....
What is Groups 1 and 17 because elements in Group 1 really want to lose their one valence electron, while those in Group 17 want to gain one more valence electron to have a total of 8?
These are the radioactive elements.
What is any atomic number 84 and greater, Technetium (atomic # - 43), and Promethium (atomic # - 61)?
This is the definition of an allotrope with an appropriate example.
What is different structural forms of the same element in the same phase (Carbon (s): Diamond, Graphite, Coal)?