Advertisements
Advertisements
प्रश्न
What are the elements.
Advertisements
उत्तर
“Elements are pure substances made up of one kind of atoms and cannot be broken down into simpler substances.” 118 elements are there.
APPEARS IN
संबंधित प्रश्न
Why do all the elements of the same group have similar properties?
Define:
Periodic table
Name two elements in Alkaline earth metals.
Name the type of elements which have outermost shell incomplete.
Write a short note.
Structure of the modern periodic table.
From the standpoint of atomic structure, what determines which elements will be the first and which the last in a period of the periodic table?
Name and state the following with reference to the elements of the first three periods of the periodic table.
A covalent compound formed by an element in period 2 and a halogen.
In the Modern Periodic Table – atoms of all elements are arranged according to their increasing order of – atomic numbers. An atom of nitrogen has seven protons and seven electrons. State what would be its atomic number.
The scientist who propounded the modern periodic law is ______.
Which of the following statements about the Modern Periodic Table is correct:
