Advertisements
Advertisements
Question
The size of an atom depends on the number of valence electrons.
Options
Right
Wrong
Advertisements
Solution
The size of an atom depends on the number of valence electrons- Wrong
APPEARS IN
RELATED QUESTIONS
Answer the following in respect of element `31/15 P`
Give its electronic configuration
What do you understand by atomic size? State its unit?
Size of atom progressively becomes smaller when we move from sodium (Na) to chlorine (CI) in the third period of the periodic table?
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
Write the name and symbol of the element from the description.
The atom having the smallest size.
What happens to the atomic size of elements on moving from left to right in a period?
The following questions refer to the Periodic Table.
What happens to the atomic size of elements moving from top to bottom of a group?
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. Which one of these elements will form ions most readily and why?
On moving from left to right in a periodic table, the size of the atom _______.
Atomic radius is expressed in the unit _______.
Nanometer unit is used to measure atomic radius.
Write information about the given atomic numbers in the table. 10, 20, 7.
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | ||||
| 20 | ||||
| 7 |
The electronic configuration of metal A is 2, 8, 18, 1.
The metal A when exposed to air and moisture forms B a green layered compound. A with con. H2 SO4 forms C and D along with water. D is a gaseous compound. Find A, B, C, and D.
Which of the following gives the correct increasing order of the atomic radii of O, F, and N?
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
- Electropositive nature of the element(s) increases down the group and decreases across the period
- Electronegativity of the element decreases down the group and increases across the period
- Atomic size increases down the group and decreases across a period (left to right)
- Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.
- Name the most electropositive element among them
- Name the most electronegative element
- Name the element with smallest atomic size
- Name the element which is a metalloid
- Name the element which shows maximum valency.
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 has the largest size?
