Periodic Trends in the Periodic Table Size of an Atom in Groups
Important Questions on Periodic Trends in the Periodic Table Size of an Atom in Groups
An incomplete form of the periodic table is given below. Write answers to the questions connecting the position of elements in it. (Symbols not real)
Among and which has higher metallic character?
An incomplete form of the periodic table is given below. Write answers to the questions connecting the position of elements in it. (Symbols not real)
Which of the elements and has the lowest electronegativity?
An incomplete form of the periodic table is given below. Write answers to the questions connecting the position of elements in it. (Symbols not real)
Which element has the smallest atom in period ?
An incomplete form of the periodic table is given below. Write answers to the questions connecting the position of elements in it. (Symbols not real)
Which is the element having the lowest ionisation energy in group ?
An incomplete form of the periodic table is given below. Write the answer to the question connecting the position of elements in it. (Symbols not real)
Which is the element with the biggest atom in group ?
You have understood certain periodic trends in the periodic table?.Based on these tick the correct answer in the table given below.
| Trends | Down the group | Across the period |
| Size of atom | decreases/increases | decreases/increases |
| Metallic character | decreases/increases | decreases/increases |
| Non-metallic character | decreases/increases | decreases/increases |
| Ionisation energy | decreases/increases | decreases/increases |
| Electronegativity | decreases/increases | decreases/increases |
Is a highly electronegative element a metal or a non-metal. Then, what about those having low electronegativity? Find out?
Is there any relationship between electronegativity and metallic and non-metallic characters? Explain.
What is the relationship between electronegativity and the size of an atom?
Where will be the position of the elements with low electronegativity in the periodic table?
Where will be the position of the elements with high electronegativity in the periodic table?
What happens to the electronegativity when we move across a period?
How does electronegativity vary from top to bottom in a group?
How the metallic character of first group elements varies on moving from top to bottom in the group? Come to a conclusion by assessing the size of the atom.
|
Element |
Electronic configuration |
| H | 1 |
| Li | 2, 1 |
| Na | 2, 8, 1 |
| K | 2, 8, 8, 1 |
| Rb | 2, 8, 18, 8, 1 |
| Cs | 2,8, 18, 18, 8, 1 |
| Fr | 2, 8, 18, 32, 18, 8, 1 |
Can you find how ionisation energy changes as we move from top to bottom in a group?
When the size of an atom increases, does the attraction of the nucleus on the outermost electron increases or decreases?
What happens to the nuclear charge with increasing atomic number?
Are there an increase in the number of shells with an increase in atomic number in the table given below?
| Element | Li | Br | B | C | N | O | F |
| Atomic number | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Number of shells | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
What happens to the size of the atom when we move down the group? What is the reason for this?
|
Element |
Electronic configuration |
| H | 1 |
| Li | 2, 1 |
| Na | 2, 8, 1 |
| K | 2, 8, 8, 1 |
| Rb | 2, 8, 18, 8, 1 |
| Cs | 2,8, 18, 18, 8, 1 |
| Fr | 2, 8, 18, 32, 18, 8, 1 |
What happens to the size of the atom when we move down the group?
|
Element |
Electronic configuration |
| H | 1 |
| Li | 2, 1 |
| Na | 2, 8, 1 |
| K | 2, 8, 8, 1 |
| Rb | 2, 8, 18, 8, 1 |
| Cs | 2,8, 18, 18, 8, 1 |
| Fr | 2, 8, 18, 32, 18, 8, 1 |
