Advertisements
Advertisements
Question
Write down the electronic configuration of the following:
(a) `""_13^27"Y"`
(b) `""_17^35"Y"`
Solution
Electronic configuration: 27X13 = 2, 8, 3
Number of electrons in X = 13
Number of neutrons in X = 27 - 13 = 14
Electronic configuration of 35Y17 = 2, 8, 7
Number of electrons in Y = 17
Number of neutrons in Y = 35 - 17 = 18
APPEARS IN
RELATED QUESTIONS
What are cathode rays? How are these rays formed?
Name the sub-atomic particle whose charge is -1.
The electronic configuration of fluoride ion is the same as that of the neon atom. What is the difference between the two?
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
The electronic configuration of nitrogen is (2, 5). How many electrons in the outer shell of a nitrogen atom are not involved in the formation of a nitrogen molecule?
An element X has 2 electrons in its M shell, it forms a bond with an element Y which has 7 electrons in its third orbit.
- Write the formula of the compound formed.
- Which nearest inert gas electronic configuration will element X and Y acquire.
- Show by orbital diagram the formation of the compound between X and Y.
What is the relation between the number of protons and the number of electrons in an atom?
Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in to discovery of
Anode rays travel in straight lines.
