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Vinvika [58]
3 years ago
13

What is the mass of an atom that has 7 protons, 7 neutrons, and 7 electrons

Mathematics
1 answer:
viva [34]3 years ago
3 0

Answer:

Nitrogen has an atomic number of 7 (Z=7) because it has 7 protons in its nucleus.

I think that's what you're looking for

?? I can always be wrong.

Good luck, hope this helped!

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HELP PLS :) its for my class
Elis [28]

Answer:

about 170

Step-by-step explanation:

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* ANSWER PLS * Which choice is chord?
ikadub [295]

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LG is a chord.

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Eight students share 12 mini oatmeal muffins equally and 6 students share 15 mini apple muffins equally. Carmine is in both grou
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12 for 8 that is 1.5 per person
15 for 6 that is 2.5 per person

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Hope this helps

8 0
3 years ago
What is the Pythagorean relationship between PQR triangle
IrinaK [193]
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5 0
3 years ago
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a father is now 38 years older than his son. Ten years ago he was twice as old as his son. let x represent the age of the son no
Helga [31]

The present age of father is 86 years old and present age of son is 48 years old

<em><u>Solution:</u></em>

Given that, a father is now 38 years older than his son

Ten years ago he was twice as old as his son

Let "x" be the age of son now

Therefore, from given,

Father age now = 38 + age of son now

Father age now = 38 + x

<em><u>Ten years ago he was twice as old as his son</u></em>

Age of son ten years ago = age of son now - 10

Age of son ten years ago = x - 10

Age of father ten years ago = 38 + x - 10

Then we get,

Age of father ten years ago = twice the age of son ten years ago

38 + x - 10 = 2(x - 10)

28 + x = 2x - 20

2x - x = 28 + 20

x = 48

Thus son age now is 48 years old

Father age now = x + 38 = 48 + 38 = 86

Thus present age of father is 86 years old and present age of son is 48 years old

7 0
3 years ago
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