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WorksheetsAtomic and ionic radius
Total questions: 10
Worksheet time: 7mins
As you move down the periodic table atoms get bigger. This is because ____________.
The atoms have more mass.
The atoms have more protons.
The atoms have more energy levels
The atoms have more neutrons
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 charges
Group of atoms or ions that have different electronic configuration
What is the example of species that are isolectronic species?
Na+ and Mg2+
Na+ and Na
Na+ and Na2+
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 species has the larger radius?
Cl
Cl-
Which species has the larger radius?
Na
Na+
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+ (Zeff=+9) and Al3+(Zeff=+11) are isoelectronic species (1s2 2s2 2p6). Which of these ion is smaller?
Na+
Al3+
They have the same size
