Advertisements
Advertisements
प्रश्न
Select the correct answer
Most reactive character among the elements given below is found in
विकल्प
I
Br
Cl
F
उत्तर
F
APPEARS IN
संबंधित प्रश्न
How do the valency and the atomic size of the elements vary while going from left to right along a period in the modern periodic table?
Why fluorine has higher E.N. than chorine?
Complete the following sentences.
The properties of the elements are a periodic function of their …………… (atomic number, mass number, reative atomic mass).
Chorine 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.
How can the valency of an element be determined if its electronic configuration is known?
Give the number of the group and the period of elements having three shells with three electrons in valence shell.
Choose the most appropriate answer from the following list of oxides which fit the description.
An oxide which dissolves in water forming an acid.
Arrange the following as per instruction given in the bracket.
Cs, Na, Li, K, Rb (decreasing electronegativity)
Supply the missing word from those in bracket:
If an element has one electron in its outermost energy level [shell] then it is likely to be _______.
Which of the following would weigh the least?
(Atomic masses C = 12, 0 = 16, Na = 23)