Advertisements
Advertisements
Question
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.
Advertisements
Solution
a) The block shown by box A is s-Block.
S(16) = 2, 8, 6 (electronic configuration of any element in s block)
b) The block of element denoted by letter B is d – Block.
The period number of that element is 4.
APPEARS IN
RELATED QUESTIONS
Choose the word or phrase from the brackets which correctly complete the following statement:
Metals are good ______ (oxidizing agents/reducing agents) because they are electron ______ (acceptors/donors).
Name any five periods properties.
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
How do the following change on moving from left to right in a period of the periodic table?
Give examples in support of your answer.
Nature of oxides of the elements ?
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 non-metallic element be found at A,B,C or D ?
In the third period, which is the most metallic and most non-metallic element?
Explain
Larger the atomic size, more metallic is the element.
Select the correct answer
Configuration of an element is 2, 8, 1. Which of the following statement is true?
Within a group, where would you expect to find the element with the greatest 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 :
Write the name.
Two elements having two orbits.
The metallic character of the element decreases moving across a period from left to the right.
Write an Explanation.
Electronegativity
Which of the following set of elements is written in order of their increasing metallic character?
Three elements B, Si and Ge are
Which of the following metal (s) do not react with water?
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
