Chemistry chapter 8
which of these elements has the greatest electron affinity (largest positive value)?
b S
how many 3d electrons does an Fe^3+ ion have
e 5
which of these elements form stable +2 cations
a Ba
Which of these atoms has the greatest electron affinity (largest positive value)?
a Br
which of these elements has the highest first ionization energy
a C
which of these elements is a transition element?
a Fe
the elements in group7A are known by what name
a halogens
which of these ions does not have (Kr) as its electronic configuration
b Zn^2+
consider the element with the electron configuration (Xe)6s^24f^7. This element is
b a lanthanide element
The general electron configuration for atoms of the halogen group is
b ns^2np^5
which of these elements has the smallest ionization energy?
b rb
WHich 2 electron configurations represent elements that would have similar chemical properties?
c 1 and 4
the cobalt (111) ion, Co^3+, has how many 3d electrons
c 6
which of the elements listed below has the greatest atomic radius
c Al
which pair of elements from different groups resemble each other the most in their chemical properties?
c Al and Be
which ion is isoelectronic with Ar
c Ca^2+
which of these choices is the electron configuration for the aluminium ion
c Is^2 2s^2 2p^6
which of the species make an isoelectronic pair: cl-, 0^2-,F,Ca^2+, Fe^3+?
c cl^- and Ca^2+
the general electron configuration for atoms of all elements in Group 5A is
c ns^2np^3
which of these atoms has the smallest radius
d P
consider the element with the electron configuration (kr)5s^24d^7
d a transition metal
which of these elements has the smallest first ionization energy
d k
which of these choices is the general electron configuration for the outermost electrons of elements in the alkaline earth group
d ns^2
The general electron configuration for noble gas atoms is
d ns^2np^6
which of these choices is the electron configuration of a sulfide ion
e (Ar)
which of these elements has the greatest electron affinity (largest positive value)
e Br
which of these atoms has the largest radius
e Ga
The alkali metal elements are found in ___ of the periodic table.
e group 1A
which of these pairs consists of isoelectronic species
e k^+ AND Cl^-
how many electrons are in the 4p orbitals of selenium
e. 4