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WorksheetsPeriodicity - Atomic radii
Total questions: 20
Worksheet time: 20mins
Atomic radius generally increases as we move __________.
When Zeff increases, the nucleus attraction
towards electrons become
Weaker
Stronger
Remain the same
Across a period from left to right , atomic radius
decreases
increases
increases, then decreases
decreases, then increases
Which of the following elements in group 1, has the largest atomic radius?
Li (Z=3)
Na (Z=11)
K (Z=19)
Rb (Z=37)
Which of the following elements in Period 3, has the smallest atomic radius?
Sulfur (Z=16)
Chlorine (Z=17)
Aluminum (Z=13)
Sodium (Z=11)
Which of the following elements has the smallest atomic radius?
Element A
Element B
Element C
Element D
Which of the following elements has the smallest atomic radius?
Sulfur
Chlorine
Aluminum
Sodium
Atomic radius generally increases as we move __________.
As you move across the period in periodic table, atoms tend to get smaller because, ______________.
Which has the LARGER radius?
F
Br
Which Block is letter C
s - block
p - block
d - block
f - block
Which of the following is NOT one of the main categories the elements are organized in?
metals
metalloids
non-metals
gases
What happens to atomic radius across a period?
the atoms get bigger because the nucleus is bigger as more protons are added
the atoms get bigger because there are more ve-
the atoms get smaller because with more attraction to the extra protons, the e- cloud moves closer to the nucleus
Atomic radius generally decrease across the period because __________.
increasing shielding effect
increasing effective nuclear charge
increasing mutual repulsion
