Advertisements
Advertisements
प्रश्न
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
उत्तर
The tendency to lose electrons decreases as we go from left to right across the periodic table.
This happens because the atomic size decreases from left to right, and the force of the nuclear attraction on the outermost electron increases. So, it requires more energy to lose electrons.
APPEARS IN
संबंधित प्रश्न
Why do all the elements of the same group have similar properties?
How were the positions of isotopes of an element decided in the modern periodic table?
The atomic particle whose number in the atoms of an element always remains the same and which forms the real basis for the modern classification of elements is:
(a) electron
(b) proton
(c) neutron
(d) meson
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same period of the periodic table?
What is the main characteristic of the last element in each period of the periodic table?
What is meant in the periodic table by a period?
Give the symbol and valency of the following element and radical.
Magnesium
______ is the longest period in the periodical table.
Arrange the following elements in the increasing order of their metallic character
| Mg, | Ca, | K, | Ge, | Ga |
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 |
Which of the element is a Metalloid?
