2 years ago

Which element has 7 valence electrons?

Physics

2 answers:

Kruka [31]2 years ago

4 0

Answer:

Bromine

Explanation:

because it is present in 17th group that gives valence electrons as 7 in its last orbit

xxMikexx [17]2 years ago

4 0

Answer:

bromine

Explanation:

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Why would a person who weighs 100 lbs. on Earth weigh significantly more on Ju-piter?

Nitella [24]

Answer:

Is a

Explanation:

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3 years ago

A thin spherical shell with radius R1 = 4.00 cm is concentric with a larger thin spherical shell with radius R2 = 6.00 cm . Both

kakasveta [241]

Answer:

The right response will be "450 volts".

Explanation:

The given values are:

R1 = 4.00 cm

R2 = 6.00 cm

q1 = +6.00 nC

q2 = −9.00 nC

As we know,

The potential difference between the two shell's difference will be:

⇒ $\Delta V=K[(\frac{q1}{R1}+\frac{q2}{R2})-(\frac{q1}{R1} +(\frac{q2}{R2}))]$

$=K[\frac{q1}{R2}-\frac{q1}{R1} ]$

On substituting the values, we get

$=(9\times 10^9)[\frac{6\times 10^{-9}}{0.04}-\frac{6\times 10^{-9}}{0.06}]$

Δ $=450 \ volts$

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3 years ago

Two cars are travelling in the same direction on a road. The blue car is travelling at 50 m/s in front of the red car, which is

Anestetic [448]

Explanation:

The speed of the red car, relative to the blue car, is:

v = 75 m/s − 50 m/s

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2 years ago

Canola oil is less dense than water, so it floats on water, but its index of refraction is 1.47, higher than that of water. When

kupik [55]

Answer:

therefore critical angle c= 69.79°

Explanation:

Canola oil is less dense than water, so it floats over water.

Given $n_{canola}= 1.47$

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to calculate critical angle of light going from the oil into water

we know that

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now putting values we get

$sinc= \frac{1.33}{1.47}$

c= $sin^{-1}(\frac{1.33}{1.47} )$

c=69.79°

therefore critical angle c= 69.79°

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3 years ago

Which state of matter is best at conducting heat?

jek_recluse [69]

Solids are the best at conducting heat.

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3 years ago

Read 2 more answers