Periodic Law and Periodic Table
Chemistry ⇒ Atomic Structure and the Periodic Table
Periodic Law and Periodic Table starts at 8 and continues till grade 12.
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See sample questions for grade 11
A student claims that the periodic table can be used to predict the chemical properties of unknown elements. Do you agree? Explain your answer.
Describe the trend in atomic radius as you move down a group in the periodic table.
Describe the trend in metallic character as you move from left to right across a period.
Explain why elements in the same group of the periodic table have similar chemical properties.
Explain why the atomic radius decreases across a period from left to right.
Explain why the noble gases are chemically inert.
State the Modern Periodic Law.
The atomic number of an element is 19. What is its position in the periodic table in terms of group and period?
The element with atomic number 17 is found in which group of the periodic table?
Which block of the periodic table contains the lanthanides and actinides?
Which group contains the alkali metals?
Which scientist arranged the elements in order of increasing atomic mass and noticed the periodicity of properties?
Who is credited with the formulation of the Modern Periodic Law?
