Question Text
Question 3 :
Which of the following isotopes is used for treatment of cancer?
Question 5 :
Which of the following particles may differ in numbers in neutral isotopes of the same element?<br/>
Question 6 :
Hydrogen atoms usually contain a single neutron. Deuterium and tritium are isotopes of hydrogen containing two and three neutrons, respectively. How many electrons orbit the tritium nucleus if the atom is electrically neutral?
Question 7 :
How many grams are there in a $7.0$ mol sample of sodium hydroxide?
Question 8 :
Assertion: Separation of isotope is possible because of the difference in electron numbers of isotope.
Reason: Isotope of an element can be separated by using a mass spectrometer.
Question 10 :
Which quantity related to nucleus is unchanged with increase in mass number ?