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lakkis [162]
3 years ago
7

Which element has 5 valence electrons on ring 4? ____________ Is it a metal, nonmetal or metalloid?_____________________

Chemistry
1 answer:
valina [46]3 years ago
7 0

Answer:

-Nitrogen has 5 valence electrons on the 4th shell

-nitrogen is a non metal

-

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Ulleksa [173]

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Explanation:

3 0
2 years ago
What is changed when matter undergoes a physical change?
Furkat [3]
I think its the mass that changes but im not sure
3 0
2 years ago
Find concentration of solution of 45g of glucose is dissolved in water to prepare 500g solution?​
ivolga24 [154]

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9% solution by mass

Explanation:

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3 0
2 years ago
What is the maximum radiation pressure exerted by sunlight in space ( s = 1350 w/m 2) on a flat black surface? a. 2. 25 × 10−5 p
mel-nik [20]

The maximum radiation pressure exerted by sunlight in space on a flat black surface is  4.5 × 10^{-6}  P a. So, the correct option is (b).

Radiation pressure is the name for the force electromagnetic wave particles exert on a surface. It is inversely related to the wave's speed. Given data

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Now, the radiaton pressure is given by

P = 2 S /c

where c is the speed of the light

P = 2 × 1350 /3 × 10 ^8

P = 9 × 10^{-6}  P a

For a black surface, P = 4.5× 10^{-6}  P a

Therefore, maximum radiation pressure exerted by sunlight in space on a flat black surface is  4.5 × 10^{-6}  P a

Learn more about radiation pressure here;

brainly.com/question/23972862

#SPJ4

8 0
1 year ago
A 133.8-gram sample of bronze was 10.3% tin by mass. Determine the total mass of tin in the sample.
Kay [80]
You just need to multiply the total mass by the decimal value of the part that is tin. 133.8*0.103=13.8g (following the rules of significant figures).
6 0
3 years ago
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