All categories

3 years ago

Some atoms become unstable because (2 points)

2 answers:

5 0

Atoms become unstable when the neutrons and protons are off-balance. Neutrons serve as a type of atomic “glue” that holds the nucleus together. Throw that ratio off balance, and the whole atom goes kaput.

Liula [17]3 years ago

4 0

Answer: Option (b) is the correct answer.

Explanation:

An atom consists of three subatomic particles, that is, protons, neutrons, and electrons.

Protons and neutrons reside inside the nucleus of an atom whereas electrons revolve around the nucleus of the atom.

Since protons are positively charged and neutrons have no charge so, due to the like charges of protons they tend to repel each other through electrostatic force of repulsion. But the energy which binds both protons and neutrons together in a nucleus is known as nuclear binding energy.

This energy only balances the nucleus when there are almost similar number of protons and neutrons. But when there is great difference in the number of protons and neutrons then the atom becomes unstable.

Thus, we can conclude that some atoms become unstable because neutrons and protons are off-balance.

You might be interested in

Why should you prefer dry ashing to wet ashing of food sample such as cabbage

julia-pushkina [17]

Answer:

Wet ashing is primarily used in the preparation of samples for subsequent analysis of specific minerals . It breaks down and removes the organic matrix surrounding the minerals so that they are left in an aqueous solution

Explanation:

8 0

2 years ago

Why is it possible for star that is no longer in space to still appear to shine?

Kamila [148]

There is a difference in the time we see things from space. There is a delay so we see things after they happen

5 0

2 years ago

Read 2 more answers

Can I please Get Help with this question ‍♂️ ?

Nitella [24]

Answer:

Mg(NO4)2 is 180.3 g/mol

Explanation:

First find the substance formula.

Magnesium Nitrate.

Magnesium is a +2 charge.

Nitrate is a -1 charge.

So to balance the chemical formula,

We need 1 magnesium atom for every nitrate atom.

2(1) + 1(-2) = 0

So the substance formula is Mg(NO4)2.

Now find the molar mass of Mg(NO4)2.

Mg = 24.3 amu

N = 14.0 amu

O = 16.0 amu

They are three nitrogen and twelve oxygen atoms.

So you do this: 24.3 + 14.0(2) + 16.0(8) = 180.3 g/mol

So the molar is mass is 180.3 g/mol.

The final answer is Mg(NO4)2 is 180.3 g/mol

Hope it helped!

7 0

3 years ago

Complete the equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water. Balanced equation:

shepuryov [24]

Answer : The balanced equation is,

$HF+H_2O\rightleftharpoons H_3O^++F^-$

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

The balanced chemical reaction will be,

$HF+H_2O\rightleftharpoons H_3O^++F^-$

In this reaction, hydrofluoric acid is act as a Bronsted Lowry-acid because it donate one hydrogen ion to $H_2O$ and $H_3O^+$ is act as a Bronsted Lowry-base because it accept one hydrogen ion from $HF$ .