Advertisements
Advertisements
प्रश्न
Elements in the modern periodic table are arranged in ______groups and______ periods.
विकल्प
7, 18
18, 7
17, 8
8, 17
Advertisements
उत्तर
Elements in the modern periodic table are arranged in 18 groups and 7 periods.
APPEARS IN
संबंधित प्रश्न
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
What are the merits of the modern periodic table of elements?
What is the main characteristic of the last element in each period of the periodic table?
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
Give the symbol and valency of the following element and radical.
Magnesium
Mendeleev's periodic table : atomic mass : : Modern periodic table : _______
Write scientific reason.
Lithium and sodium are included in the same group in periodic table.
On moving from left to right in a period in the periodic table, the size of the atom ______
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?
Group 16 elements are collectively called as ______.
