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प्रश्न
The tendency of an element to form cation is the _______ character of that element.
पर्याय
non metallic
basic
metallic
acidic
उत्तर
The tendency of an element to form cation is the metallic character of that element.
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संबंधित प्रश्न
Arrange the following as per the instructions given in the brackets:
Na, K, Cl, S, Si (increasing order ionization energy)
Is is metal or non-metal?
Give the trend in metallic character:
down the group top to bottom.
How does the chemical reactivity of
alkali metals vary?
Complete the following sentences
Moving across a ………….. of the periodic table the elements show increasing ………………..character (group, period, metallic, non-metallic).
Explain why the following statement is not correct:
All groups contain metals and non metals.
iii) Observe the figure and answer the following questions.
a) Identify the block shown by box A and write an electronic configuration of any one element of this block.
b) Identify the block of element denoted by letter B and write its period number.
Mg2+, Cu2+, Na1+, H1+ (In the order of preferential discharge at the cathode)
For the main group of the periodic table, the metallic properties of the elements vary approximately with their position as shown in the table.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| H | He | ||||||
| A | B | ||||||
| C | D |
Will the most metallic element be found at A,B,C or D ?
Explain
Group 17 elements are non-metals, while group 1 elements are metals.
Write the name.
The atom having the smallest atomic radius from zero group.
The metallic character of the element decreases moving across a period from left to the right.
Write scientific reason.
The metallic character of elements increases while going down the groups.
An element has atomic number 17. To which group, the period does it belong? It is metal or non-metal?
Identify the elements with the following property and arrange them in increasing order of their reactivity
- An element which is a soft and reactive metal
- The metal which is an important constituent of limestone
- The metal which exists in liquid state at room temperature
Metals are good ______ because they are electron ______.
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).
Boron, Aluminium, Gallium, Indium, Thallium
Answer the following question in relation to the above group of elements:
Will the elements in the group to the right of this boron group be more metallic or less metallic in character? Justify your answer.
