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प्रश्न
Give alongside is a part of the periodic table :
As we move horizontally from left to right:
| Li | Be | B | C | N | O | F | |
| Na | Mg | Al | Si | P | S | Cl |
(i) What happens to the metallic character of the elements?
(ii) What happens to the atomic size?
उत्तर
(i) The metallic property of elements decreases as we move horizontally from left to right.
(ii) The atomic size of elements decreases as we move horizontally from left to right.
APPEARS IN
संबंधित प्रश्न
State how the valency of elements varies in a group of the periodic table?
What is a period in a periodic table?
An element X belongs to 3rd period and group 2 of the periodic table. State:
(a) number of valence electrons
(b) valency
(c) metal or non-metal
(d) name of the element
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
Name the metals in the first twenty elements.
Name the type of elements which have outermost shell complete.
Give the symbol and valency of the following element and radical.
Aluminium
State what the group number in the Modern Periodic Table signifies. Give a reason why elements in the same group, have similar valency and similar chemical properties.
State whether true or false. If false, correct the statement.
Lanthanides and actinides are kept at the bottom of the periodic table because they resemble each other but they do not resemble with any other group elements.
Name the non-metals in the first twenty elements.
