All categories

2 years ago

What occurs when a magnesium atom becomes a magnesium ion

Chemistry

2 answers:

Law Incorporation [45]2 years ago

7 0

Answer is: Electrons are lost and the oxidation number increases.

Magnesium (Mg) is metal from 2. group of Periodic table of elements and has low ionisation energy and electronegativity, which means it easily lose valence electons (two valence electrons).

Magnesium has atomic number 12, which means it has 12 protons and 12 electrons. It lost two electrons to form magnesium cation (Mg²⁺) with stable electron configuration like closest noble gas neon (Ne) with 10 electrons.

Electron configuration of magnesium atom: ₁₂Mg 1s² 2s² 2p⁶ 3s².

Electron configuration of magnesium ion: ₁₂Mg²⁺ 1s² 2s² 2p⁶.

Karo-lina-s [1.5K]2 years ago

4 0

The electrons are lost.

You might be interested in

Strontium-90 is a radioisotope that will decrease in mass by one-half every 29 years. How many years will it take for a 10.0-gra

Lelechka [254]

Answer: It will take 29 years for a 10.0-gram sample of strontium-90 to decay to 5.00 grams

Explanation:

Radioactive decay process is a type of process in which a less stable nuclei decomposes to a stable nuclei by releasing some radiations or particles like alpha, beta particles or gamma-radiations. The radioactive decay follows first order kinetics.

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

Half life is represented by $t_{\frac{1}{2}$

$t_{\frac{1}{2}=\frac{0.693}{\lambda}$

$\lambda$ = rate constant

Given : Strontium-90 decreases in mass by one-half every 29 years , that is half life of Strontium-90 is 29 years.

As half life is independent of initial concentration, it will take 29 years for a 10.0-gram sample of strontium-90 to decay to 5.00 grams as the amount gets half.

7 0

3 years ago

What is the biggest cause of change in Earth's systems?

Dima020 [189]

Answer:

heat

Explanation:

because it's the cause of change

5 0

2 years ago

Read 2 more answers

As one mass increases, what happens to the gravitational force.

Shalnov [3]

Answer:

Gravitational force is directly promotional to the mass

of both interacting objects.

Explanation:

More massive objects will attract each other with

a greater gravitional force. So as the mass of the

either objects increases the force of gravitational

attraction between them also increases.

8 0

1 year ago

How many kilojoules are released when 2.25 mol of H2O2 reacts?

Stels [109]

Answer:

230.3 kJ

Some chemical reactions show release of heat while some show absorption of heat. On these bases, the reaction is classified as either endothermic or exothermic. Negative sign of ΔH means exothermic reaction.

8 0

2 years ago

Which element will gain only one electron during a chemical reaction?

pashok25 [27]

Answer:

nitrogen

Explanation:

SANA PO MAKATULONG PO YUNG SAGOT NA BINIGAY KO

8 0

2 years ago