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प्रश्न
______ group contains the member of the halogen family.
विकल्प
17th
15th
18th
16th
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उत्तर
17th group contains the member of the halogen family.
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संबंधित प्रश्न
Why do we classify elements?
The element which can from an acidic oxide should be the one whose atomic number is:
(a) 6
(b) 16
(c) 12
(d) 19
As element X has mass number 40 and contains 21 neutrons in its atom. To which group of the periodic table does it belong?
The following diagram shows a part of the periodic table containing first three periods in which five elements have been represented by the letters a, b, c, d and e (which are not their chemical symbols):
-
1 18 a 2 13 14 15 16 17 b c d e
(i) Select the letter which represents an alkali metal.
(ii) Select the letter which represents a nobles gas.
(iii) Select the letter which represents a halogen.
(iv) What type of bond is formed between a and e?
(v) What type of bond is formed between d and e?
Answer the following question.
Write the name, symbol, and electronic configuration of an element X whose atomic number is 11.
Classify the following elements into Metals and Nonmetals.
S, Mg, Al, P, N, Na.
Which of the following have inert gases 2 electrons in the outermost shell.
Identify and name the metals out of the following elements whose electronic configurations are given below.
- 2, 8, 2
- 2, 8, 1
- 2, 8, 7
- 2, 1
Relate the names of the following scientists with the statements given below.
Arranged elements in a group of seven with increasing atomic masses and eighth elements with similar properties kept below the first like eight note in an act of music.
Complete the following triads by inserting the missing elements.
Li, ______, K
