Trends in the Periodic Table
Chemistry ⇒ Atomic Structure and the Periodic Table
Trends in the Periodic Table starts at 9 and continues till grade 12.
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Arrange the following elements in order of increasing atomic radius: F, Cl, Br.
Arrange the following ions in order of increasing size: O2−, F−, Na+, Mg2+.
Describe the trend in density of alkali metals as you move down the group.
Describe the trend in electron affinity as you move down Group 17 (halogens).
Explain the trend in reactivity of alkali metals as you move down the group.
Explain why atomic radius decreases across a period from left to right.
Explain why noble gases have very low chemical reactivity.
Explain why the atomic radius of transition metals does not decrease as much as that of main group elements across a period.
Which of the following best describes the trend in atomic radius down a group?
(1) Increases
(2) Decreases
(3) Remains the same
(4) Increases then decreases
Which of the following elements has the greatest metallic character?
(1) Lithium
(2) Potassium
(3) Sodium
(4) Rubidium
Which of the following elements has the highest second ionization energy?
(1) Na
(2) Mg
(3) Al
(4) Si
Which of the following elements has the largest atomic radius?
(1) Sodium (Na)
(2) Magnesium (Mg)
(3) Potassium (K)
(4) Calcium (Ca)
As you move down a group in the periodic table, the first ionization energy generally __________.
The effective nuclear charge experienced by valence electrons __________ as you move across a period.
The element with the highest electronegativity in the periodic table is __________.
The energy required to remove an electron from a gaseous atom is called __________.
State whether the following statement is true or false: Metallic character increases down a group.
State whether the following statement is true or false: Nonmetals tend to have higher ionization energies than metals.
True or False: Ionization energy generally increases across a period from left to right.
True or False: The atomic radius of an anion is larger than that of its parent atom.
