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प्रश्न
Among the given species A–, A+, and A, the smallest one in size is ______.
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उत्तर
Among the given species A–, A+, and A, the smallest one in size is A+.
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संबंधित प्रश्न
An element Y is in second period and group 16 of the periodic table:
(i) Is it a metal or non-metal?
(ii) What is the number of valence electrons in its atom?
(iii) What is its valency?
(iv) What is the name of the element?
(v) What will be the formula of the compound formed by Y with sodium?
An element X from group 2 reacts with element Y from group 16 of the periodic table.
(a) What is the formula of the compound formed?
(b) What is the nature of bond in the compound formed?
What is the atomic number of elements of period 3 and group 17 of the Periodic Table?
The atom of an element has electronic configuration 2, 8, 7. To which of the following elements would it be chemically similar?
Which of the following is a transition element?
An element is placed in 2nd Group and 3rd Period of the Periodic Table, burns in presence of oxygen to form a basic oxide.
- Identify the element
- Write the electronic configuration
- Write the balanced equation when it burns in the presence of air
- Write a balanced equation when this oxide is dissolved in water
- Draw the electron dot structure for the formation of this oxide
Relate the names of the following scientists with the statements given below.
Arranged elements into groups containing three elements each.
Complete the following triads by inserting the missing elements.
Cl, ______, I
Complete the following triads by inserting the missing elements.
Li, ______, K
The atomic number of an element 'X' is 11.
- Write the electronic configuration of X and find its valency.
- Write the formula and nature of its oxide.
