Question
Which element of Group 17 has two isotopes of masses 35
and 37 amu with average abundance of 75.77% and 24.23%, respectively?Solution
Chlorine is the element of Group 17 that has two isotopes of masses 35 and 37 amu. The average abundance of the isotopes is 75.77% for 35 amu and 24.23% for 37 amu. Chlorine has the atomic number 17 and its chemical symbol is Cl.
The position of how many alphabets will remain unchanged if each of the alphabets in the word ‘ PERFORMANCE ’ is arranged in alphabetical order from...
In the word ‘HYPNOTISE’, if all the letters that come before M (excluding M) is changed to their second succeeding letter and all the letters that ...
- If in the word 'COMPUTER', all the consonants are changed to 3rd preceding and all the vowels are changed to immediately preceding letter as per the Englis...
If the positions of the first and fifth digits of the number ' 83591427' are interchanged, similarly the positions of the second and the sixth digits ar...
All the letters of the word NETHERLANDS are arranged in alphabetical order of left to right. Then all the consonants are replaced with the next alphabet...
- If all the letters of the word ‘ADMIRATION’ are arranged in alphabetical order from the left end, then, the position of how many letters remain unchang...
How many such digits are there in the number ‘83495865427’ which will remain at the same position when they are arranged in the ascending order from...
If all the digits of the number '56342893' are written in descending order from left to right, then the position of how many digits remains unchanged?
If the letters at even positions are replaced by succeeding letter in the word “CONNECTIONS” then how many letters are there in English alphabetica...
If all the digits of the number '67453984' are written in descending order from left to right, then the position of how many digits remains unchanged? ...
Relevant for Exams:
