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ANTONII [103]
3 years ago
6

What is the mass of strontiums isotopes

Chemistry
1 answer:
Elanso [62]3 years ago
7 0

Strontium has four stable, naturally occurring isotopes: 84-Sr (0.56%), 86-Sr (9.86%), 87-Sr (7.0%) and 88-Sr (82.58%). 87.62 is standard atomic mass of strontium.

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2. Based on what you know about waves and light, do you think that light can be
ss7ja [257]

Answer:

Light as a wave: Light can be described (modeled) as an electromagnetic wave. In this model, a changing electric field creates a changing magnetic field. This changing magnetic field then creates a changing electric field and BOOM - you have light. ... So, Maxwell's equations do say that light is a wave.

Explanation:

Hope this helps

6 0
3 years ago
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What is the purpose of finding oxidation states in the half-reaction method for balancing equations?
vazorg [7]

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B. To Identify the half reactions for the equation

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3 years ago
SCIENCE QUESTION
sergey [27]
It is solid because of the pressure. Hope this helps :))
7 0
4 years ago
Can radiation take place in solids, liquids, and gasses?
kenny6666 [7]
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Answer:

Yes<em>!</em>

Explanation:

<u>Liquids</u> & <u>gases</u> are poor conductors, but they can make heat (thermal energy) travel quickly from one point to another. ... ~ When waves of heat (thermal energy) travel through empty space and transparent mediums, heat transfer by radiation occurs. <u>Solids, liquids,</u> & <u>gases</u> can all be heated by radiation.

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3 0
3 years ago
If the boron nitride molecule, bn, were to form, what would its structure look like? add bonds and lone pairs as necessary.
Bess [88]

Answer: The structure for the boron nitride molecule will be linear.

Explanation: When boron and nitrogen combine together to form a compound, the boron element will loose 3 electrons which will be easily accepted by the nitrogen element.

Boron : Atomic number is 5

Electronic configuration: 1s^22s^22p^1

To attain stable configuration, boron will loose 3 electrons easily.

Nitrogen : Atomic number is 7

Electronic configuration: is^22s^22p^3

To attain stable configuration. nitrogen will gain 3 electrons easily.

Hence, to form a molecule with these two elements, there will be 3 bonds present in between them and 1 pair of lone pair will be left on the nitrogen atom.

Structure of boron nitride ( which is linear) is attached in the image below.

8 0
3 years ago
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