How Many Elements Are There in Period 2? - Chemistry

How many elements are there in period 2?

One Line Answer

There are 8 elements in period 2.

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Chapter 1: Periodic Properties And Variation Of Properties: Physical And Chemical - Exercise 4 [Page 19]

Chapter 1 Periodic Properties And Variation Of Properties: Physical And Chemical
Exercise 4 | Q 6 | Page 19

Calculate the mass of Calcium that will contain the same number of the atom as are present in 3.2 gm of Sulphur.

[Atomic masses: S=32, Ca=40]

Arrange the following elements in the increasing order of their metallic character:
Mg, Ca, K, Ga

How does Nature of oxides of elements change on going from left to right in a period of the periodic table?

Give examples in support of your answer.

How does the number of:

valency vary on moving from left to right in the second period of the periodic table?

How do the following change on moving from left to right in a period of the periodic table?
Give examples in support of your answer.

Chemical reactivity of elements ?

An element X belong to 3rd periods and group II of the periodic table state:

the number of valence electrons,

Write two reasons responsible for late discovery of noble gases ?

What is modern periodic law?

What is meant by a group in the periodic table?

Name the elements in Period 1.