Ask a New Question

Yttrium-90 is an important radioactive

The isotope of an atom containing 31 protons and 39 neutrons suddenly has two neutrons added to it.What isotope is created?
1. 1 answer
2. asked by nunya
3. 98 views
Yttrium-90 is an important radioactive isotope used by doctors for cancer treatment. The isotope undergoes beta decay with a
1. 1 answer
2. asked by Kenzie
3. 336 views
Use the periodic table to answer the question. Which element has the same number of electron shells as tungsten (W)? (1 point)
1. 1 answer
2. 29 views
Which element has the same number of electron shells as tungsten (W)?(1 point) Responses gold (Au) gold (Au) nickel (Ni) nickel
1. 1 answer
2. 19 views
Which element has the same number of electron shells as tungsten (W)?(1 point) Responses yttrium (Y) yttrium (Y) gold (Au) gold
1. 1 answer
2. 30 views
Radioactive decay is first order in the decaying isotope. For example, strontium-90 contained in fallout from nuclear explosions
1. 3 answers
2. asked by Soco
3. 949 views
Use the periodic table to answer the question. Which element has the same number of electron shells as tungsten (W)? (1 point)
1. 5 answers
2. 156 views
Use the periodic table to answer the question.An illustration shows the periodic table. Which element has the same number of
1. 1 answer
2. asked by i love miners
3. 22 views
Which of the following statements about radioactive dating is true?a. Radioactive decay is the rate at which new atoms form. b.
1. 70 answers
2. asked by Anonymous
3. 19,623 views
How many half lives will it take for a sample of a radioactive isotope containing 20000 radioactive nuclei to decay to 2000
1. 2 answers
2. asked by Dianne
3. 743 views