Examlex
A newly synthesized element is found to have a half-life of 3.82 minutes.How long after its formation will the activity be only 10% of original activity?
Q23: A typical E.coli bacterium is a cylindrical
Q28: Choose the correct statement about isomers of
Q35: Provide names for compounds A,B and C:
Q37: Beta decay of <sup>60</sup>Co produces a beta
Q39: Both gypsum and plaster of Paris contain
Q53: Bombardment of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5343/.jpg" alt="Bombardment of
Q55: Pick the nonmetal in Group 13 (3A).<br>A)Al<br>B)Ga<br>C)In<br>D)B<br>E)Tl
Q59: Which of the following would have the
Q75: In the production of the metal by
Q83: The nuclear binding energy is the energy