What element is found on the third period in the group representing five valence electrons?
Phosphorous
Ionization Energy gets larger when it:
a) Moves from left-to-right across a period the periodic table
b) Moves down a group
c) Both A & B
D) None of the above
A. Moving left-to-right across the periodic table
Metal, Nonmetal or metalloid
Tellurium
Metalloid
Group 2A elements
Alkaline Earth metals
How many valence electrons does Titanium have?
2 valence electrons as it is in a B group
What is period for an element who's noble gas electron configuration is:
[Rn]7s2 5f6
7th period
Between which of the two elements will have the higher ionization energy?
Gallium or Selenium
Selenium
What specific classifications can Rhenium be described by?
Transition Metal
Vaguer descriptions - Transition Element > Metal
any atom that has a positive or negative charge
ion
Which pair make up two metalloids?
A. Silver & Copper
B. Aluminum & Tellurium
C. Boron & Arsenic
D. Phosphorous & Polonium
C. Boron & Arsenic
What is the group, period, and block of an element with the electron configuration of
1s2 2s2 2p6 3s2 3p2
Group 4A
Period 3
P - Block
Which has the highest ionic Radius?
Ge Ge+4 Ge-4
Electrons make atoms larger, thus the largest ionic radius is Ge-4 as it has four extra electrons.
In what specific ways can Barium be classified?
Alkaline Earth Metal
the energy required to remove an electron from an atom
ionization energy
List three properties of nonmetals
Low Melting and boiling points
Not Malleable
Not Ductile
Generally gases or dull, brittle solids.
Poor conductors of heat and electricity
What is the group, period, block, and name of the element of the following:
[Kr]5s2 4d5
Group 7B
Period 5
D-Block
Technetium
List the elements in decreasing electronegativity
Magnesium
Chlorine
Phosphorous
Strontium
Chlorine
Phosphorous
Magnesium
Strontium
Given an example of 2 representative elements.
Any element that is in an "A" group
states that when arranged by increasing atomic number there is a periodic repetition of chemical and physical properties
Periodic Law
Noble gases have how many valence electrons?
8 valence electrons, except for Helium that has 2
What is the group, period, block, and name of the element who's noble gas configuration ends with
6s2 4f14 5d10 6p1
Group 3A
Period 6
P-Block
Thallium
Rank the following atoms in terms of increasing atomic radius
Beryllium
Barium
Boron
Bismuth
Boron (B)
Beryllium (Be)
Bismuth (Bi)
Barium (Ba)
Decreases from left to right and increases as you go down.
Given an example of a inner transition metal, halogen, and alkali metal
Inner Transition metal elements are on the bottom two rows. Halogens group 7A, and Alkali Metals are group 1A
atoms with gain, share, or lose electrons in order to get a full set of valence electrons
octet rule
List three elements that are likely to be brittle in its solid state and with low melting and boiling points
Any nonmetals
Nitrogen, Oxygen, Phosphorous, Selenium, any of the halogens, or noble gases.