MEDIUM
8th Kerala Board
IMPORTANT
Earn 100

Haven’t you understood how symbols are assigned to elements? Given below are some elements that received symbols from their Latin names. Complete the table with the help of the Periodic Table.

Element Latin name  Symbol
Silver .................... ...................
............ Hydrargium ..................
Tin ............... .................
................. ................... Pb
Antimony .................. ...................
.................. Aurum .................

 

Important Questions on Basic Constituents of Matter

EASY
8th Kerala Board
IMPORTANT

Analyze the chemical equation given for the reaction between nitrogen and hydrogen to give ammonia.

N2+3H22NH3

Find the total number of molecules and atoms of the reactants.

EASY
8th Kerala Board
IMPORTANT
Hydrogen is a monatomic molecule.