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3 years ago

An atom becomes

Chemistry

2 answers:

Alina [70]3 years ago

6 0

Answer:

Negatively Charged if the atom is neutral.

Explanation:

Electrons themselves have a negative charge.

When you add an electron to an atom that is neutral, the atom becomes negatively charged.

Take Sodium (Na) for example. It has 11 (positive) protons and 11 (negative) electrons - it's neutral.

Explanation:

lora16 [44]3 years ago

5 0

Answer:

if it has equal positive and negative then neutral. but if there are more electrons than protons then it becomes negative.

Explanation:

hope this helps!

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The energy of moving particles in a substance

Alecsey [184]

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4 years ago

A 18.77 g sample of a compound contains 5.99 g of potassium, K, 5.43 g of chlorine, Cl, and oxygen, O. Calculate the empirical f

evablogger [386]

The empirical formula of the compound is KClO₃.

<h3>Empirical formula </h3>

This is the simplest structural formula a compound can have.

The given mass of the elements;

potassium, K = 5.99 g

chlorine, Cl = 5.43 g

oxygen, O = 18.77 g - (5.99 + 5.43)g = 7.35 g

The empirical formula of the compound is calculated as follows;

$K: \ \ \frac{5.99}{39} = 0.15 \\\\Cl: \ \ \frac{5.43}{35.5} = 0.15\\\\O: \ \ \frac{7.35}{16} = 0.46$

<em>Divide through by the smallest fraction;</em>

$K: \ \frac{0.15}{0.15} = 1\\\\Cl: \ \frac{0.15}{0.15} =1 \\\\O: \ \frac{0.46}{0.15} = 3$

empirical formula = KClO₃

Learn more about empirical formula here: brainly.com/question/1603500

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What structure do all of these elements have in common?

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I think the answer is the number of protons.

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