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 9
Explain the term 'periodicity' in the context of the periodic table.
Explain why elements in the same group have similar chemical properties.
Name the group that contains the most reactive nonmetals.
State one reason why the periodic table is important in chemistry.
State the periodic law in your own words.
The atomic number of sodium is 11. How many protons does a sodium atom have?
What is a period in the periodic table?
What is the atomic number of chlorine?
Elements in the same group have similar chemical properties because they have the same number of (1) protons (2) neutrons (3) valence electrons (4) energy levels. Choose the correct option.
Which group contains the alkali metals? (1) Group 1 (2) Group 2 (3) Group 17 (4) Group 18
Which group contains the alkaline earth metals? (1) Group 1 (2) Group 2 (3) Group 17 (4) Group 18
Which of the following best describes the trend in atomic radius across a period from left to right? (1) Increases (2) Decreases (3) Remains the same (4) First increases, then decreases
The atomic number of an element increases by ________ as you move from left to right across a period.
The atomic number of an element is equal to the number of ________ in its atom.
The element with atomic number 6 is ________.
The elements in the periodic table are arranged in order of increasing ________.
True or False: All elements in the periodic table are naturally occurring.
True or False: Elements in the same group have the same number of protons.
True or False: Elements in the same period have the same number of electron shells.
True or False: Hydrogen is placed in Group 1 because it has similar properties to alkali metals.
