Advertisements
Advertisements
प्रश्न
Arrange the following elements in order of their decreasing metallic character.
Na, Si, Cl, Mg, Al
विकल्प
Cl > Si > Al > Mg > Na
Na > Mg > Al > Si > Cl
Na > Al > Mg > Cl > Si
Al > Na > Si > Ca > Mg
Advertisements
उत्तर
Na > Mg > Al > Si > Cl
Explanation:
Metallic character refers to the tendency of an element to lose electrons. In the periodic table:
- Across a period (from left to right), metallic character decreases because the atomic size decreases and the effective nuclear charge increases, making it harder to lose electrons.
- All the given elements (Na, Mg, Al, Si, Cl) belong to Period 3.
- Arranging them from left to right in Period 3 gives the order of decreasing metallic character: Sodium (Na) > Magnesium (Mg) > Aluminium (Al) > Silicon (Si) > Chlorine (Cl).
APPEARS IN
संबंधित प्रश्न
Arrange the following as per the instructions given in the brackets:
Na, K, Cl, S, Si (increasing order ionization energy)
Arrange the following as per the instructions given in the brackets:
Cl, F, Br, I (increasing order of electron affinity)
Name any five periods properties.
Metallic character and non-metallic character are periodic properties discuss ?
Name the periodic property which relates to the character of element which loses one or more electrons when supplied with energy.
How does the chemical reactivity of
alkali metals vary?
Which has the maximum metallic character Na, Li or K?
Among the elements of the second period, Li to Ne, pick out the element that is the most reactive non-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 | 13 | 14 | 15 | 16 | 17 | 18 |
| H | He | ||||||
| A | B | ||||||
| C | D |
- Will the most metallic element be found at A, B, C or D?
- Will the most non-metallic element be found at A, B, C or D?
State whether the following statement is true or false
All members of zero group are non metals.
Explain
Group 17 elements are non-metals, while group 1 elements are metals.
If an element is in group 7 is it likely to be metallic or non metallic in character?
Match the atomic number with the following:
A metal of valency one.
The tendency of an element to form anion is the ______ character of that element.
Electropositivity means ______.
Write scientific reason.
The metallic character of elements increases while going down the groups.
The lightest liquid metal is ______
Which of the following set of elements is written in order of their increasing metallic character?
Which of the following metal (s) do not react with water?
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
