WorksheetsAtomic and ionic radius
Total questions: 10
Worksheet time: 30mins
What is meant by isolectronic?
Group of atoms or ions that have the same electronic configuration
Group of atoms or ions that have the same protonic configuration
Group of atoms or ions that have the same electrical properties
Group of atoms or ions that have the same electron charge
What is the example of species that are isolectronic?
Na+ and Si4+
Na+ and Cl-
Mg2+ and Al +
S2- and O2-
Arrange these species in increasing order of size.
Cl- , Ca2+ , S2- , Ar , K+
Ca2+ > K+ > Ar > Cl- > S2-
S2- > Cl- > Ar > K+ > Ca2+
Ca2+ < K+ < Ar < Cl- < S2-
S2- < Cl- < Ar < K+ < Ca2+
Ionization energy __________ as you do across a period
has no pattern
stays the same
decreases
increases
Which has the highest ionization energy?
Arsenic
Iron
ZInc
Cobalt
Going down the group, the atomic radius of elements increases. Why is that so?
the number of shell (n) increases
Shielding effect increases
Nucleus attraction towards valence electrons weaker
All of the above
Which is larger... P or P3- ? … and why?
P3- because it gains an energy level
P3- due to extra electron repulsion
P because it loses an energy level
P because of extra electron repulsion
Na+ and Al3+ are isoelectronic species (1s2 2s2 2p6). Which of these ion is smaller?
Na+
Al3+
I'm not sure
They have the same size
