Advertisements
Advertisements
प्रश्न
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
Right or wrong sentence.
Nanometers use these units to measure atoms.
पर्याय
Right
Wrong
Advertisements
उत्तर
The given sentence is wrong.
Explanation:
Atomic radius is normally reported in picometers (pm) or ångströms (Å) because typical atomic sizes are on the order of 10–300 pm (0.01 - 0.3 nm); 1 pm = 10−12 m. While you can convert to nanometres, `±/"A"` are the standard, more convenient units.
APPEARS IN
संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
Na, K, Li (Increasing atomic size)
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Give the trends in atomic size on moving down the group.
Why is the size of sodium is greater than magnesium?
Which is greater in size an atom or an anion?
Give scientific reasons for the following:
Atomic radius goes on decreasing while going from left to right in a period.
Study the radius of the element given below and answer the following questions.
| elements | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
a) Which of the above elements have the smallest atom?
b) In which group of the modern periodic table the above element are belongs?
c) What is the periodic trend observed in the variation of atomic radii down a group?
Arrange the following in increasing order of property indicated
I, I+, I- (atomic size)
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Atomic size increases from left to right across a period.
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?
Arrange the following as per the instruction given in the bracket:
Mg, Cl, Na, S, Si, (decreasing order of atomic size).
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 |
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?
- In below ladder symbols of elements are jumbled up. Rearrange these symbols of elements in the increasing order of their atomic number in the Periodic Table.
- Arrange them in the order of their group also.
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)
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.
