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N76 [4]
3 years ago
7

Explain why chlorine forms a -1 ion, but sulfur froms a -2 ion

Physics
1 answer:
12345 [234]3 years ago
4 0
As both chlorine and sulfur throw their electrons such that they achieve their stable electrons to be the so called " modal atom " Therefore chlorine have to throw 1 electron to form 8 and sulfur have to throw 2 to form 8 . Therefore if they throw it will be negative while if they add it will be positive .
* Remember ( All Atmos have electronic figuration of most 2,8 or 2,8,8,8 )
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How many electrons does a neutral atom of the element oxygen have?
sesenic [268]

Answer:

8 electrons

Explanation:

Now you can figure out how many electrons, protons and neutrons Oxygen has: Atomic number (which is always the smaller of the two numbers) is 8. Hence 8 protons. Because the atom is neutral, there are also 8 electrons.

6 0
3 years ago
Using the force table, components of a vector can be found experimentally by suspending masses from 2 orthogonal strings which o
SCORPION-xisa [38]
Answer: 134.23g at 0° (horizontal) and 77.5g at 90° (vertical).

Explanation:

1) Since the mass of <span>155 g is suspended at 210 degrees, you need to find the components of its weight on the orthogonal coordinate system (0° and 90°).
</span>

<span>2) You do that using the trignometric ratios sine and cosine.
</span>

<span>Weight is mass × g.
</span>
<span>Weight of the object = 155g × g
</span>
<span>Angle, α = 210°
</span>

<span>Horizontal component (0°)
</span>
<span>cosα = horizontal / hypotenuse ⇒ horizontal = hypotenuse × cosα
</span>
⇒ horizontal = 155g × g × cos(210°) = - 134.23g  × g

Vertical component
sinα = vertical / hypotenuse ⇒ vertical = hypotenuse × sinα
⇒ vertical = 155g × g × sin(210°) = -77.5g × g

3) Conclusion:

Therefore, the masses that must be suspended to balance the forces of the 155g mass are 134.23g at 0° (horizontal) and 77.5g at 90° (vertical).




8 0
3 years ago
What happens to the force of attraction between two planets when the masses of both are doubled?
daser333 [38]
So as two objects are separated from each other, the force of gravitational attraction between them also decrease. if the separation distance between 2 objects is doubled (increased by a factor of 2), then the force of gravitational attraction is decreased by a factor of 4 (2 raised to the second power).  

Hope this helps :)
3 0
3 years ago
Question 6 / 6
mario62 [17]
Attach the picture therefore we can answer !
4 0
3 years ago
C Determine the coulomb's force between the electron and the nucleus in
tiny-mole [99]

Answer:

F = 2.3 x 10⁻⁸  N

Explanation:

Given,

The mean distance between the electron and the nucleus, x = 1 x 10⁻¹⁰ m

The number of protons present in the nucleus of the hydrogen atom is 1.

The charge of the proton and electron,  q = 1.602 x 10⁻¹⁹ C

Since they have opposite charges, the force between them is attractive,

The coulomb law of force between two charges is given by the formula,

                          <em> F=\frac{1}{4\pi\epsilon_{0}}\frac{qq}{x^{2}}</em>

                           \frac{1}{4\pi\epsilon_{0}}   = 9 x 10⁹ Nm²C⁻²

Substituting the values in the above equation

                              F = 9 x 10⁹ X (1.602 x 10⁻¹⁹)² / (1 x 10⁻¹⁰)²

                                 = 2.31 x 10⁻⁸  N

Hence, the force between the nucleus and electron of hydrogen atom is, F = 2.3 x 10⁻⁸  N

6 0
3 years ago
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