Atomic Size
Which atom is bigger- Na or Mg?
Sodium
Atomic radius _____ across the period
Decreases
Which atom is bigger- B, C, Al?
Al
Atomic radius _____ down the group
Increases
Which is bigger- Be or Si?
Si
As we go down the group, ____ are added
New Shells
Which is bigger- H or He?
H
Atomic radii decreases from Li to F as _____ increases due to increase in _____.
Nuclear charge; Atomic number
Which is bigger- C,P or S?
S
Ne is slightly bigger than F due to ______
Inter-electronic repulsion
Which element has the largest atomic size- He, F, Ar or Na?
Na
Which element in Period 2 has biggest atomic radius?
Lithium
Which is bigger- Mg or Ca?
Ca
Across a period, number of protons inside the nucleus ______ by one, thus nuclear charge _______
Increases; Increases
Element 1 and 2 belong to the same group and are part of Period 3 and 4 respectively. Which has bigger size?
Element 2
Two elements belong to the same period. A is an alkali metal and B is an alkali-earth metal. Which has bigger radius?
A
Down the group, the atomic size _____ in spite of _____ in nuclear charge.
Increases; Increase
Which element has the smallest atomic size?
Hydrogen
Atomic radius is the _____ distance between the atom’s nuclei and the _____ of the atom.
Shortest; Outermost shell
Which element in Period 3 has smallest atomic radius?
Chlorine
Which atom has bigger atomic size- Cl or Ar?
Argon
Which element has the largest atomic size- F, O, S or Cl?
S
From the first 20 elements, which alkali metal has bigger atomic size?
Element X has E.C- 2,8,4, Element Y has E.C.- 2,8,8,1 and Element Z has E.C.- 2,8,8 . Which is bigger?
Y
Which of the atoms has the smallest atomic radius- O, Ne, B or Li?
Oxygen