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प्रश्न
Right or wrong sentence.
Silicon is a metallic element.
पर्याय
Right
Wrong
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उत्तर
The given sentence is wrong.
Explanation:
Silicon is a metalloid (a semimetal); it has properties intermediate between metals and nonmetals rather than being a true metallic element. For how metallic character is decided (why silicon sits along the metal/nonmetal border), see the explanation of periodic trends and metalloid placement.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the bracket.
Cs, Na, Li, K, Rb (increasing order of metallic character).
Name any five periods properties.
Give the trend in metallic character:
(i) across the period left to right
Give the trend in metallic character:
down the group top to bottom.
Name the periodic property which relates to the character of element which loses one or more electrons when supplied with energy.
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing non – metallic character
Among the elements of the second period, Li to Ne, pick out the element that is the most reactive non-metal
Among the elements of the second period, Li to Ne, pick out the element that is the most reactive metal
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 ?
Select the correct answer
Configuration of an element is 2, 8, 1. Which of the following statement is true?
Copy and complete the following sentence choosing the correct word or words from those given below, at the end of the sentence:
The element at the bottom of a group would be expected to show ______ metallic character than the element at the top.
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?
The lightest liquid metal is ______
Three elements B, Si and Ge are
Choose the odd one out and write the reason:
Arrange the following as per instruction given in the bracket.
Cs, Na, Li, K, Rb (increasing metallic character)
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
