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Question
What is meant in the periodic table by a period?
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Solution
In a periodic table, elements are arranged in the order of increasing atomic numbers in horizontal rows called periods.
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RELATED QUESTIONS
In the Modern Periodic Table, which are the metals among the first ten elements?
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?
What is a period in a periodic table?
What is the number of elements in the 1st period?
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
What are groups and periods in the modern periodic table?
______ and ______ are called inner transition elements.
Spot the error:
The elements of group 13 are called the carbon family.
Explain giving reason why although the nuclear charge in atoms increases in moving from left to right in a period as well as in moving from top to bottom in a group in the Modern periodic table, but the size of the atoms does not vary similarly in both situations.
Name the following metal:
A metal present in period 3, group 1 of the periodic table.
