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प्रश्न
Electropositivity means ______.
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उत्तर
Electropositivity means the tendency of an atom of an element to form cation by losing its valence electrons.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P `
What is its valency?
Name any five periods properties.
Metallic character and non-metallic character are periodic properties discuss ?
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
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.
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.
Supply the missing word from the words given in brackets.
If an element has one electron in its outermost energy level, then it is likely to be _ (metallic, non metallic)
A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last). Answer the following question in relation to the given group of elements:
Which element has the most metallic character?
Refering to changes in the properties of elements on moving from left to right across a period of the periodic table. Choose the correct answer.
The non-metallic character of the elements :
The tendency of an element to form cation is the _______ character of that element.
The metallic character of the element decreases moving across a period from left to the right.
Electronegativity is the metallic property of an element.
Write scientific reason.
The metallic character of elements increases while going down the groups.
A metal ‘M’ is in the first group of the Periodic Table. What will be the formula of its oxide?
Choose the odd one out and write the reason:
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
