Chemistry, 23.10.2019 08:00 lezapancakes13

An ion with a charge of +3 would most likely be an element in group

a.
1
b.
16
c.
18
d.
13

2.
an element in group 2 would most likely form what kind of bond?

a.
covalent
b.
ionic
c.
polar covalent
d.
hydrogen

3.
when an ion with a charge of +2 gains two electrons, it no longer is an ion.

a.
true
b.
false

Answers: 1

Show answers

Answers

Answer from: Hali07

For 1: The correct answer is Option D.

For 2: The correct answer is Option B.

For 3: The correct answer is Option A.

Explanation:

For 1:

An ion is formed when a neutral atom looses or gains electrons.

When an atom looses electrons, it results in the formation of positive ion known as cation.When an atom gains electrons, it results in the formation of negative ion known as anion.

We are given:

An ion carrying a charge of +3. This means that an element is loosing 3 electrons, so it has 3 valence electrons.

The elements that belong to Group 13 of the periodic table has 3 valence electrons and form +3 ions.

Hence, the correct answer is Option D.

For 2:

For the given options:

Option A: Covalent bond is defined as the bond which is formed when sharing of electrons takes place between the atoms. This is usually formed between two non-metals.

Option B: Ionic bond is defined as the bond which is formed by complete transfer of electrons from one atom to another atom. The atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom. This bond is usually formed between a metal and a non-metal.

Option C: A polar covalent bond is formed when difference in electronegativity between the atoms is present. When atoms of different elements combine, it results in the formation of polar covalent bond. For Example: CO_2,NO_2 etc..

Option D: Hydrogen bonding is defined as the intermolecular force having partial ionic-covalent character. This type of bonding takes place between a hydrogen atom (attached with an electronegative atom e.g. O, N and F) and an electronegative atom (O,N and F).

Group 2 elements are considered as metals having general electronic configuration as ns^2

They will loose 2 electrons to form $X^{2+}$ ions and thus tends to form ionic bonds.

Hence, the correct answer is Option B.

For c:

When a positive ion gains electrons equal to the charge on the ion, the positive charge will get neutralized by the negative charge.

$X^{2+}+2e^-\rightarrow X$

The ion will loose its charge and will form a neutral atom.

Hence, the correct answer is Option A.

Answer from: Quest

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

Answer from: Quest

d : a person who learns about the world by observing it. no that is not a smiley face

explanation:

Another question on Chemistry

Chemistry, 21.06.2019 18:30

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Answers: 2

Answer

Chemistry, 22.06.2019 03:30

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Answers: 1

Answer

Chemistry, 22.06.2019 09:00

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Answers: 2

Answer

Chemistry, 22.06.2019 10:40

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Answers: 1

Answer

You know the right answer?

An ion with a charge of +3 would most likely be an element in group

a.
1
b....

Questions