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igomit [66]
3 years ago
13

A single atom of an element has 11. protons, 11. electrons, and 12 neutrons. Which element is it?

Chemistry
2 answers:
8_murik_8 [283]3 years ago
5 0

Answer:

Sodium (Na)

Explanation:

The atomic number (it's order in the periodic table) is the same as the number of protons. Since there are 11 protons, it is the 11th element. Referencing the periodic table, that is Sodium, represented by Na.

Bumek [7]3 years ago
4 0

Answer: B

Explanation:

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If an acceleration is 0, it means that it neither slowed down nor sped up.

Now let us analyze your problem by listing down the speed and the time:

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8 0
3 years ago
What is the wavelength of the matter wave associated with an electron (me= 9.1 x 10-31 kg) moving with a speed of 2.5 x 107 m/s?
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3 years ago
If 4.50 g of (nh4)2so4 is dissolved in enough water to form 250. ml of solution, what is the molarity of the solution?
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3 0
3 years ago
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