Q37 of 181 Page 283

Which of the following statement is correct in regard to the classification of elements ?

Regarding to the classification of elements, In modern periodic table, the isotopes of chlorine having different atomic masses are kept in the same group

More from this chapter

All 181 →
35

The three imaginary elements X, Y and Z represent a Dobernenner’s triad. If the atomic mass of element X is 14 and that of element Y is 46, then the atomic mass of element Z will be :

 36

The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is

 38

Which of the following statement about the modern periodic table is correct?

 39

An element X forms an oxide X2O3. In which group of Mendeleev’s periodic table is this element placed ?