Advertisements
Advertisements
प्रश्न
The number of electrons in an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of the element?
पर्याय
`""_15^13"X"`
`""_31^16"X"`
`""_16^15"X"`
`""_15^16"X"`
Advertisements
उत्तर
`""_15^13"X"`
Explanation -
Number of electrons = 15,
Number of neutrons = 16
Hence an atomic number of element X is 15 and the atomic mass is 31. Hence the element is represented as `""_15^13"X"`
APPEARS IN
संबंधित प्रश्न
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
Fill in the blanks of the following statements :
An atom has atomic mass number 23 and atomic number 11. The atom has_________ electrons.
Cathode rays are a beam of fast moving _________
The maximum number of electrons that can be accommodated in L shell are_________
The maximum number of electrons that can go into the M shell is _________
What is the nature of the charge on Cathode rays .
Give the symbol and charge of each particle.
What are inert elements?
Element X has electronic configurations 2, 8, 18, 8, 1. Without identifying X,
- Predict the sign and charge on a simple ion of X.
- Write if X will be an oxidizing agent or a reducing agent. Why?
In the formation of (i) oxygen molecule (ii) carbon tetrachloride molecule, state the following:
- Electronic configuration of nearest inert gas attained.
- How many electrons are shared/transferred in bond formation
- Which type of bonds these compounds form?
- Draw their orbital diagrams.
Atoms of all metals will have ______ electrons in their outermost orbit.
The maximum number of electrons that can be present in the N shell is ______.
The relative charge of an electron is – 1.
