Advertisements
Advertisements
प्रश्न
Name the type of elements which have outermost shell complete.
Advertisements
उत्तर
Noble gases
APPEARS IN
संबंधित प्रश्न
The modern periodic table was prepared by ______.
Which of the following are the correct characteristics of isotopes of an element?
(i) same atomic mass
(ii) same atomic number
(iii) same physical properties
(iv) same chemical properties
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)
What are horizontal rows and vertical columns in a periodic table known as?
Give the symbol and valency of the following element and radical.
Sulphate
State the number of elements in Period 1 of the Periodic Table.
Compare Modern Periodic Law with Mendeleev's Periodic Law.
Right or wrong sentence.
The modern periodic table shows the molecular masses of the elements in each frame.
Distinguish between:
Group 17 - Group 18
An X element with atomic number 11 and Y element with atomic number 13 belongs to the third period in the modern periodic table. With this information, give the answers of the below questions.
- Which element has more metallic character from these two elements?
- What is the valency of each X and Y elements?
- Atom size of Y element is smaller than atom size of X element? Explain?
Which of the following elements would lose an electron easily?
