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प्रश्न
On moving from left to right in a periodic table, the size of the atom _______.
विकल्प
increases
decreases
decreases first and then increases
does not change
उत्तर
On moving from left to right in a periodic table, the size of the atom decreases.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P `
Give its formula with chlorine?
Which is greater in size an atom or an anion?
Arrange the following in increasing order of property indicated
I, I+, I- (atomic size)
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The atomic size:
The size of an atom is indicated by its _______.
_______ is the distance between the nucleus of the atom and its outermost shell.
Moving from left to right, the size of the atom decreases.
The size of an atom depends on the number of valence electrons.
Some elements and their atomic radii are given here. Arrange them in decreasing order of their atomic radii. Identify which of the above elements is the biggest atom and which is smallest?
| Element | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If the atomic number of carbon is 6, the atomic number of silicon is ______
Which of the following is the correct order of size?
Which of the following is the correct order of atomic size?
When an atom of iodine becomes an iodine ion (I–) the radius will ______
Write the formula of the product formed when the element A (atomic number 19) combines with the element B (atomic number 17). Draw its electronic dot structure. What is the nature of the bond formed?
Atomic number of a few elements are given below
10, 20, 7, 14
- Identify the elements
- Identify the Group number of these elements in the Periodic Table
- Identify the Periods of these elements in the Periodic Table
- What would be the electronic configuration for each of these elements?
- Determine the valency of these elements
Arrange the following as per the instruction given in the bracket:
Carbon, Fluorine, Beryllium (decreasing order of atomic size).
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
Arrange the following in order of increasing radii:
Cl−, Cl
Explain your choice.
Which one of the following has the largest atomic radius?
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
