Advertisements
Advertisements
प्रश्न
State the number of elements in Period 2 of the Periodic Table.
How many elements are there in Period 2.
Advertisements
उत्तर
Period 2 is a short period that has 8 elements.
APPEARS IN
संबंधित प्रश्न
Write the merits of the modern periodic table over Mendeleev’s Periodic table
Name the type of elements which have two outermost shell incomplete.
What is meant in the periodic table by a period?
Give the symbol and valency of the following element and radical.
Potassium
Mendeleev's periodic table : atomic mass : : Modern periodic table : _______
______ and ______ are called inner transition elements.
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Write the molecular formula of the compound formed by the combination:
E and B
An element with atomic number ______ will form a basic oxide.
Answer the following in respect of element \[\ce{_16^32S}\].
Give its formula with hydrogen.
