3 years ago

Do Halogens gain or lose electrons to form ions

1 answer:

4 0

Halogens are among the most reactive of all elements. They have seven valence electrons, so they are very “eager” to gain one electron to have a full outer energy level. So they gain

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If an atom of Oxygen (8 protons, 8 neutrons, and 8 electrons) gains two electrons, what is the charge of the ion formed?

Alexxx [7]

Answer:

It becomes negative

Explanation:

protons carry a positive charge

neutrons carry a neutral charge

electrons carry a negative charge

if we add 2 more electrons, the charge of the ion becomes negative

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3 years ago

Compare protons with electrons.

Step2247 [10]

Proton:
Positively charged
Inside nucleus
Mass - 1

Electrons:
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Mass - 1/2000

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4.2 grams of magnesium metal reacts with excess gold III chloride to form 5.9 grams of gold and also magnesium chloride. What is

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Answer:

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Explanation:

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3. A tea kettle holds about of water. 2 mL 200 mL 2L 200 L

cluponka [151]

A tea kettle holds on average about 1.7-2 Liters of water. So the answer should be 2 Liters

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4 years ago

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“Na2SO3” represents sodium sulfite.

Afina-wow [57]

Answer: (C) .There are four molecules of sodium sulfite.

Explanation:

$4Na_2SO_4$ means that there are four molecules of sodium sulfite.

Molecule is defined as a group of atoms bonded together. They are smallest unit of the substance which participates in a chemical reaction.

Atom is defined as smallest unit of matter which composed of electrons , protons and neutrons.

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