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KATRIN_1 [288]
3 years ago
12

Which of the following terms best describes the nucleus of a radioactive element?

Chemistry
2 answers:
forsale [732]3 years ago
8 0
The answer is c= unstable
Jet001 [13]3 years ago
6 0
Which of the following terms best describes the nucleus of a radioactive element? 
C. Unstable
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How many neutrons does element X have if its atomic number is 31 and its mass number is 80?
MrRissso [65]

49 neutrons in each nucleus.

<h3>Explanation</h3>

For each nucleus:

Mass number = Number of protons + Number of neutrons.

The atomic number of a nucleus is the same as its number of protons. The atomic number of the nucleus here is 31. There are 31 protons in each nucleus.

  • Mass number = 80;
  • Number of protons = Atomic number = 31;
  • The number of neutrons is to be found.

Again,

Mass number = Number of protons + Number of neutrons.

80 = 31 + Number of neutrons.

Number of neutrons = 80 - 31 = 49.

5 0
2 years ago
The electrons formed from the aerobic oxidation of glucose are
SVEN [57.7K]

Answer:

i and ii

Explanation:

In the aerobic oxidation of glucose, the electrons formed are transferred to O2 after several others transfer reactions like passing through coenzymes NAD+ and FAD

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2 years ago
Convert 43 F to Kevin. (Remember units on your answer and SHOW YOUR WORK)
gavmur [86]

Answer:

279.26K

Explanation:

T(k) = (43 + 459.67)×5/9

502.67 × 5/9

279.26 K

4 0
2 years ago
B
aev [14]

Answer:

mgh is the formula for potential energy

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3 years ago
What is the definition of specific heat? O A. The heat required to break the molecular bonds within a substance B. The total amo
snow_tiger [21]

Answer:

C

Explanation:

C .       specific heat =    J / gm-C

               

7 0
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