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Doss [256]
2 years ago
9

At

Physics
1 answer:
AnnyKZ [126]2 years ago
4 0

Explanation:

One common property with all halogens in group 7 is that they are all non-metals.

Fluorine, chlorine, Bromine and Iodine are classified as non-metallic elements and they have a high electronegativity.

  • In chemical reactions, they are very reactive because they require just one electron to complete their octet configuration and be isoelectronic with noble gases.

The most prominent observation from halogens is that they all non-metallic in nature.

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Answer:

B) 16.67

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Diamond has an index of refraction of 2.419. What is the critical angle for internal reflection inside a diamond that is in air?
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Answer:

C) 24.4°

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3 years ago
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Answer:

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Scientific question are logical quantifiable questions, whose answers can be measured. A good scientific question must have answers that can be tested by a carefully designed experiment or measurement. Some qualities like "prettiest" and "amazing" cannot be tested for nor are they measurable, and hence, they do not make a testable component of good scientific question.

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