periodic table

The rows found in the periodic table are referred to as?

• molecules

• group

• period

• line

The element that is most prevalent in the universe

Answer explanation

Hydrogen (H) accounts for roughly 75% of the entire observable cosmos.

Match the following symbols to their names

• Gold

• C

• Iron

• Fe

• Silver

• Pb

• lead

• Ag

• Carbon

• Au

Arrange the following elements in the increasing order of their atomic number

• krypton

• sodium

• oxygen

• Carbon

• magnesium

Answer explanation

Atomic number means the number of protons in the nucleus of the atom and periodic table is arranged according to the atomic numbers

What is the name of this group of elements in the periodic table?

• f- block elements

• d- block elements

• s - block elements

• p block elements

The symbol of ​ (a)   is ​ (b)  

• Gold
• Au
• Ag
• Iron

A lot of elements have weird names just like this one. Which element was named after a US state?

Answer explanation

Californium was named after the US state of California. It is element number 98 in the periodic table.

Which is the heaviest element in the periodic table?

Answer explanation

Oganesson, named for Russian physicist Yuri Oganessian (SN: 1/21/17, p. 16), is the heaviest element currently on the periodic table, weighing in with a huge atomic mass of about 300. Only a few atoms of the synthetic element have ever been created, each of which survived for less than a millisecond

Total number of metals in a periodic table

Mathematical Equivalence

ON

This element when react with oxygen create rust. Which element is this?

• Iron

• silver

• Carbon

• Gold