periodic table

Front

Who discovered the first scientific and systematic periodic table?

Back

Dmitri Mendeleev

Front

Which one is correct about Mendeleev's periodic law?

Back

Properties of elements are periodic function of their atomic mass.

Front

Choose the correct statement:

• the vertical column in the periodic table is called period
• the vertical column in the periodic table is called group
• the horizontal row in the periodic table is not called period
• none of the above

Back

The vertical column in the periodic table is called group.

Front

How many groups are there in the modern periodic table?

Back

18

Front

Alkali metals are kept in which group?

Back

IA

Front

Number of valence electrons in halogens is ..........

Back

7

Front

D block elements are known as .............

Back

Transition elements

Front

In which block does the element Iron stand?

Back

d block

Front

How many electrons can d orbital accommodate?

Back

10

Front

Which group has the strong electronegative character? Options: alkali metal, lanthanides, inert gases, halogens

Back

halogens