graduation of elements properties in modern periodic table

The measuring unit of the atomic radius is .......................

• Meter

• Millimeter

• Nanometer

• Picometer

In the same period , by increasing the atomic number........

• Atomic size decreases

• Atomic size increases

• Atomic radius increases

• Atomic size doesn't change

An element (X) whose atomic number is 13 so, the number of electrons in its ion is........

• 8

• 10

• 11

• 12

All of the following are from metalloids except.......

• Tellurium

• Silicon

• Boron

• Bromine

Each period in the periodic table starts with.......

• Mettalic element

• Semi mettalic element

• Non mettalic element

• Inert gas

.................... is the lowest element in the mettalic property in group ( 1A )

• Na

• Cs

• K

• Li

Sodium oxide is from.............oxides

• Acidic

• Basic

• Amphoteric

• Non metal

Magnesium reacts with oxygen giving................

• Mg (oH)₂

• MgCl₂

• MgO

• Mg₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When sodium reacts with water, ................... gas evolves

• N₂

• O₂

• H₂

• CO₂

Tags

NGSS.MS-PS1-2

Which of the following is an acidic oxide?

• MgO

• CO ₂

• H2Co3

• CuO