Answer:
69.152 % → 63Cu
30.848 % → 65Cu
Explanation:
As you know, the average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.
Answer:
C. 0.001 second
Explanation:
Millisecond is a subunit of a second.
Milli depicts a unit to the power of 10⁻³
So;
1 millisecond = 10⁻³ s
Therefore,
1 x 10⁻³ = 0.001s
The solution to this problem is choice C which is 0.001 second
The number of protons doesn't differ between isotopes and it is number 24. The atomic number is 24 and that is how many of the protons there are. There are 24 protons in any chromium.
Answer:
founder of the periodic law.
Subjects Of Study: periodic law
Notable Works: “The Principles of Chemistry”
Died: February 2, 1907 (aged 72) St. Petersburg ...
Born: February 8, 1834 Tobolsk Russia
Explanation:
for u bbg, an goo//
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