Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

The half-life of a radioactive element is 10 hours. How much will be left after 4 hours in 1 g atom sample? (A) 45.6 ×1023 atoms (B) 4.56 ×1023 atoms (C) 4.56 ×1021 atoms (D) 4.56 ×1020 atoms

The half-life of a radioactive element is 10 hours. How much will be left after 4 hours in 1 g atom sample?
(A) 45.6 ×1023 atoms (B) 4.56 ×1023 atoms (C) 4.56 ×1021 atoms (D) 4.56 ×1020 atoms

Grade:

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
576-126_q.PNG
Vikas TU
14149 Points
one year ago
So, if a problem asks you to calculate an element's half-life, it must provide information about the initial mass, the quantity left after radioactive decay, and the time it took that sample to reach its post-decay value. Therefore, its half-life is t1/2=98.012.7=7.72 years .

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free