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12345 [234]
3 years ago
10

What are the three main categories of elements?

Physics
2 answers:
o-na [289]3 years ago
8 0

Answer:

Classification of the Elements. These three groups are: metals, nonmetals, and inert gases.

Explanation:

iogann1982 [59]3 years ago
7 0

Answer:If you're referring to Organic Molecules, then they are CARBON, HYDROGEN and OXYGEN.

Explanation:

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An imaginary line perpendicular to a reflecting surface is called ____refrac_____.
umka2103 [35]
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3 years ago
It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (For example, w
Charra [1.4K]

Answer:

b) q large and m small

Explanation:

q is large and m is small

We'll express it as :

q > m

As we know the formula:

F = Eq

And we also know that :

F = Bqv

F = \frac{mv^{2} }{r}

Bqv = \frac{mv^{2} }{r}

or Eq = \frac{mv^{2} }{r}

Assume that you want a velocity selector that will allow particles of velocity v⃗  to pass straight through without deflection while also providing the best possible velocity resolution. You set the electric and magnetic fields to select the velocity v⃗ . To obtain the best possible velocity resolution (the narrowest distribution of velocities of the transmitted particles) you would want to use particles with q large and m small.

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