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Stella [2.4K]
3 years ago
6

The number of protons in the nucleus of the atom is equal to the atomic number. True False

Chemistry
2 answers:
fiasKO [112]3 years ago
7 0
Yes it is equal,True 
Dominik [7]3 years ago
6 0
True, <span>The </span>number of protons in the nucleus of the atom is equal to the atomic number<span>. The </span>number of electrons in<span> a neutral </span>atom is equal<span> to the </span>number of protons<span>. The </span>mass number<span> of the </span>atom<span>  is </span>equal<span> to the sum of the </span>number of protons<span> and </span>neutrons in<span> the </span>nucleus<span>.</span>
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Radio waves travel at the speed of light which is 3.00 x 10^8. How many minutes does it take for a radio message to reach saturn
ryzh [129]

Answer:

43.89 min

Explanation:

Given that:-

The speed of light = 3.00\times 10^8\ m/s

The distance = 7.9\times 10^8\ km

The conversion of distance in km to distance into m is shown below as:-

1 km = 1000 m

So,

Distance = 7.9\times 10^8\times 1000\ m=7.9\times 10^{11}\ m

The relation between speed distance and time is shown below as:-

Speed=\frac{Distance}{Time}

Thus,

3.00\times 10^8=\frac{7.9\times 10^{11}}{Time}

300000000\times time=10^{11}\times \:7.9\ s

Time = 2633.33 seconds

Also, 1 s = 1/60 min

So,

Time=\frac{2633.33}{60}\ min=43.89\ min

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