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10Henry Moseley arranged elements in increasing order of atomic number.
The modern periodic table has 8 groups and 7 periods.
Elements in the same group have the same number of valence electrons.
Atomic size increases from left to right in a period.
Metals generally donate electrons during chemical reactions.
Halogens are placed in group 18.
Inert gases do not easily participate in chemical reactions.
Elements in the same period have the same number of shells.
Metallic character decreases as we move down a group.
Hydrogen is placed in group 1 of the modern periodic table.
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Who discovered the modern periodic table?
On which basis are the elements arranged in the modern periodic table?
Which of the following statements is true regarding the characteristics of a group?
Which metal is found in liquid state at normal room temperature?
Which of the following elements belongs to Group 18 of the modern periodic table?
What are the similarities between argon and chlorine?
Which statement is correct about the characteristics of groups in the periodic table?
Which group is known as halogens?
Who proposed the Modern Periodic Law?
How many groups are there in the modern periodic table?
The modern periodic table is based on the ______ number
The modern periodic table has ______
Elements of group 1 are called ______ metals.
Group 2 elements are called ______.
Inert gases are placed in group ______.
Elements in the same group have the same number of ______ electrons.
Atomic size increases from ______\_to_bottom in a group
Atomic size decreases from ______ in a period.
Non-metals generally gain ______ during chemical reactions.
The vertical columns in the periodic table are called ______.