chapter 2

In the periodic table of the element of Mendeleev, element are arranged increases from left to right according to?

• A. Nuclear charge

• A. Metallic properties

• A. Atomic mass

• A. Atomic radius

Aluminium (Al) has atomic number 13. So Aluminium from block?

• A. s - block

• A. p - block

• A. d - block

• A. f - block

Elements (Y) has atomic number 17. So in the periodic table of the elements, (Y)'s group is?

• A. II A

• A. VII A

• A. V A

• A. III A

In the fourth period, how many elements it has?

• 8

• 16

• 18

• 20

The periodic table of the elements arranged from left to right according to?

• Increase number of oxidation states

• Increase metallic properties

• Increase atomic radius

• Increase atomic number

According those elements to increasing atomic radius:

Li, N, O, Na, K

• Li, N, O, Na, K

• K, Na, O, N, Li

• O, N, Li, Na, K

• O, N, Li, K, Na

According those elements to increasing electronegativity:

Na, K, Mg, Al

• Al, Mg, K, Na

• K, Na, Mg, Al

• Na, Mg, Al, K

• K, Al, Mg, Na

All d-block and f-block's elements are:

• Noble gases

• Nonmetals

• Metals

• Liquids

Which period has two elements?

• The first period

• The third period

• The fifth period

• The seventh period

Elements R has atomic number 35. R's position is:

• The fourth period, group VIIA

• The fourth period, group V B

• The fourth period, group V A

• The fourth period, group VII B