Chem unit 6
In which block of the periodic table are the elements having the following valence electron configuration: s^2 p^1
p-block
In which block of the periodic table are the elements having the following valence electron configuration: s^2 p^4
p-block
list two other elements with similar chemical properties: Barium (Ba)
ruthenium and osmium
In which block of the periodic table are the elements having the following valence electron configuration: s^1
s-block
without referring to the periodic table, determine the group, period, and block of the atom with the following electron configuration: [Kr] 5s^2 4d^10 5p^5
Group: 17, Period: 5, Block: p
without referring to the periodic table, determine the group, period, and block of the atom with the following electron configuration: [He] 2s^2
Group: 2, Period: 2, Block: s
without referring to the periodic table, determine the group, period, and block of the atom with the following electron configuration: [Ne] 3s^2
Group: 2, Period: 3, Block: s
determine which element in each pair has the largest atomic radius: the element in period 2, group 1: or the element in period 6, group 15
Largest: Bismuth Smallest: Silicone
What are the symbols for the elements with the following valance electron configurations? s^2 p^3
Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb), Bismuth (Bi)
Identify the following elements and write the electron configuration: the group 16 element in the second period
Oxygen (O) 1s^2 2s^2 2p^4 or [Ne] 2s^2 2p^4 or 2p^4
What are the symbols for the elements with the following valance electron configurations? s^2 d^1
Scandium (Sc), Yttrium (Y), Lutetium (Lu), Lawrencium (Lr)
What are the symbols for the elements with the following valance electron configurations? s^2 p^6
Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn)
Why does it take more energy to remove the second electron from a lithium atom than it does to remove the fourth electron from a carbon atom?
Because Lithium's second electron is an inner core electron and not a valence electron while carbon's fourth electron is still a valence electron.
Identify the following elements and write the electron configuration: the group 2 element in the fourth period
Calcium (Ca) 1s^2 2s^2 3s^2 3p^6 4s^2 or [Ar] 4s^2 or 4s^2
What are the symbols for the elements with the following valance electron configurations? s^2 p^5
Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), Astatine (At)
determine which element in each pair has the largest atomic radius: the element in period 4, group 18: or the element in period 2, group 16
Largest: Krypton Smallest: Oxygen
determine which element in each pair has the largest atomic radius: the element in period 2, group 1: or the element in period 3, group 18
Largest: Lithium Smallest: Argon
Between magnesium (Mg), silicone (Si), sulfur (S), and sodium (Na) which has the largest and which the smallest atomic radii
Sulfur is the smallest because it has the most inner valence shell and the greatest amount of protons for the innermost energy level, electron shell.
Identify the following elements and write the electron configuration: the noble gas in the fifth period
Xenon (Xe) 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 or [Kr] 5s^2 4d^10 5p^6 or 5p^6
Identify the following elements and write the electron configuration: the group 12 element in the fourth period
Zinc (Zn) 1s^2 2s^2 3s^2 3p^6 3d^10 or [Ar] 4s^2 3d^10
Indicate whether fluorine or bromine has the largest value for each of the following properties: atomic radius
bromine- fluorine is n=2 and bromine is n=4, the electrons are much further away from the nucleus
Indicate whether fluorine or bromine has the largest value for each of the following properties: ionic radius
bromine- the valence shell is in the fourth energy level, much further from the nucleus so any electron attracted into the empty orbital would extend that orbital even more
list two other elements with similar chemical properties: Iron (Fe)
calcium and magnesium
In which block of the periodic table are the elements having the following valence electron configuration: s^2 d^1
d-block; transition metals
list two other elements with similar chemical properties: Iodine (I)
fluorine and chlorine
Indicate whether fluorine or bromine has the largest value for each of the following properties: ionization energy
fluorine- has the greatest electronegativity, electron affinity, and because it has the greatest number of protons in the second period which is closer to the nucleus, or concentrated center of positivity, which means the attraction between protons and electrons is the greatest.
Indicate whether fluorine or bromine has the largest value for each of the following properties: electronegativity
fluorine- n=2 and bromine n=4, the electrons are much closer to the nucleus and there is a greater attraction even for the electrons to fill the vacant orbital
