Advertisements
Advertisements
Question
Which of the following statement (s) about the Modern Periodic Table are incorrect
- The elements in the Modern Periodic Table are arranged on the basis of their decreasing atomic number
- The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic masses
- Isotopes are placed in adjoining group (s) in the Periodic Table
- The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic number
Options
(i) only
(i), (ii) and (iii)
(i), (ii) and (iv)
(iv) only
Solution
(i), (ii) and (iii)
Explanation -
The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic number and not on the basis of their increasing atomic masses. Also, the Isotopes are not placed in the adjoining group (s) in the Periodic Table.
APPEARS IN
RELATED QUESTIONS
Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?
Explain in brief how Mendel interpreted his results to show that the traits may be dominant or recessive.
How many elements were known at the time of Mendeleev's classification of elements?
What was the basis of Mendeleev's classification?
State the contributions made by Mendeleev towards the periodic table.
At the time of Mendeleev _______ elements were known.
Beryllium : alkaline earth metal : : sodium: _______
Write the molecular formula of the oxide of any one of the elements in Mendeleev’s periodic table.
An element has 12 protons. The group and period to which this element belongs is ______
Which of the following oxide is most basic?
