Advertisements
Advertisements
Question
State the property trends in general of elements on moving from left to right in a period of the periodic table.
Solution
Property trends of elements from left to right in a period:
- Number of electron shells remains the same.
- Valence electrons increase by one.
The transition from metallic to non-metallic character increases. - Size of atom decreases.
APPEARS IN
RELATED QUESTIONS
Name the element that has two shells, both of which are completely filled with electrons.
The following table shows the electronic configuration of the elements W, X, Y, Z:
| Element | w | x | y | z |
| Electronic configurations |
2, 8, 1 | 2, 8, 7 | 2, 5 | 1 |
Answer the following questions based on the table above:
1) What type of Bond is formed between :
a) W and X
b) Y and Z
2) What is the formula of the compound formed between :
a) X and Z
b) W and X
How does Nature of oxides of elements change on going from left to right in a period of the periodic table?
Give examples in support of your answer.
Name the element which has the electronic configuration 2, 8, 3?
Name the element of lower nuclear charge out of Be and Mg.
What is the common feature of the electronic configuration of the elements at the end of period 2, and period 3?
How do you calculate the possible valency of an element from the electronic configuration of its atoms?
The following questions refer to the Periodic Table.
Name the first and last element in period 2.
State the following:
The group to which the element with an electronic configuration of 2, 8, 2 belongs.
Chlorine in the Periodic Table is surrounded by the elements with atomic number 9, 16, 18 and 35.
Which of these have Physical and Chemical properties resembling chlorine?
