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Firdavs [7]
3 years ago
11

one isotope of a metallic element has a mass number of 65 and 35 neutrons in the nucleus. the cation derived the isotope has 28

electrons. write a nuclear symbol for this element
Chemistry
1 answer:
hichkok12 [17]3 years ago
8 0
The electrons and protons would be the same amount than take the atomic mass-the atomic number get the answer that way
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A mixture of krypton and argon gas is expanded from a volume of 88.0L to a volume of 100.0L, while the pressure is held constant
Firlakuza [10]

Answer:

-3.28 × 10⁴ J

Explanation:

Step 1: Given data

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Step 2: Calculate the work (w) done by the gaseous mixture

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(1)List three things you know about<br> an atom? (2) What is matter created of?
kicyunya [14]

Answer:

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

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gladu [14]

#1

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7 0
3 years ago
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