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WorksheetsPeriodic table
Total questions: 6
Worksheet time: 3mins
What is metallic radius?
Half of the distance between the nuclei of two closest and identical atoms
Half of the distance between the nuclei of two closest and identical metal ions
Half of the distance between the nuclei of metal ions in the crystal lattice of metal
Half of the distance between the nuclei of metal atoms in the crystal lattice of metal
Which of the following has van der Waals forces between molecules?
NaCl
AlCl3
H2O
Cu
Which two factors affect the atomic radius of an element?
atomic size
nuclear charge
shielding effect
van der waals force
Br atom has a larger atomic radius than Cl atom although Br has a larger nuclear chage. This is because
greater lattice energy
greater screening effect
bigger ionic size
higher charge
On across Period 2 or Period 3 from left to right, the atomic radius......
increases
descreases
constant
Which of following pairs is isoelectronic?
O2- and Li+
He and F-
N3- and P3-
Ca2+ and Cl-
