1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sveta [45]
3 years ago
5

Within each group of four atoms or ions presented below. select the species that are isoelectronic with each other:Note: you are

not comparing the two columns, only selecting which within each column are isoelectronic with each other-not across the two columns.
Zn Ge²⁺
Fe³⁺ Cl⁻
Mn²⁺ B⁻
Ar C
Chemistry
1 answer:
Basile [38]3 years ago
5 0

Answer:

Fe³⁺ and Mn⁺²

B⁻ and C

Explanation:

Isoelectronic are species that have the same number of electrons. A neutral species has the same number of protons and electrons, and the number of protons in the atomic number (Z) found in the periodic table.

A cation (positive ions) lost the numbe of electrons indicate in its charge, and an anion (negative ions) gain the number of electrons indicate in its charge. So, let's identify the number of electrons (e-) in each one the atoms:

First column:

Zn: Z = 30, e- = 30

Fe³⁺: Z = 26, e- = 26 - 3 = 23

Mn⁺²: Z = 25, e- = 25 - 2 = 23

Ar: Z = 18

Isoelectronic: Fe³⁺ and Mn⁺²

Second column:

Ge⁺²: Z = 32, e- = 32-2 = 30

Cl⁻: Z = 17, e- = 17 + 1 = 18

B⁻: Z = 5, e- = 5 + 1 = 6

C: Z = 6, e- = 6

Isoelectronic B⁻ and C

You might be interested in
During action potential, positively charged ________ ions move inside the cell.
Tems11 [23]

During action potential, positively charged  sodium ions move inside the cell.

So option D is correct one.

The sodium ion moves inside the cell during a action potential. The stage of action potential is called depolarization . This open voltage gated sodium channel.

Action potentials ( those electrical impulse that send signals around body )  is nothing but more than temporary shift ( from negative to positive ) in the neuron's membrane potential caused by ions suddenly flowing in and out of the neuron.

It consists of phases:

  • Depolarization
  • overshoot
  • repolarization

An active potential propagates along the cell membrane of an axon until  it reaches the terminal button.

to known more about action potential

brainly.com/question/27095019

#SPJ4

8 0
2 years ago
Franklin Roosevelt promised the American people a "new deal," a pledge he made actually before he was elected, at the Democratic
Minchanka [31]

The New Deal program was to help the American economy recover from the Great Depression.

<h3>Who was Franklin Roosevelt?</h3>

Franklin Delano Roosevelt was an American politician and attorney who served as the 32nd president of the United States from 1933 until his death in 1945.

Roosevelt promised the American people a "New Deal" if he was elected president in 1932. The goal of this New Deal program was to help the American economy to recover from the Great Depression.

Roosevelt's deal was based on providing economic relief to citizens, reforming institutions that failed during the early 1930's, and helping the overall economy to recover. This popular program lead FDR to be elected president 4 times.

Learn more about Franklin Roosevelt here:

brainly.com/question/8333337

#SPJ1

4 0
2 years ago
When was the idea of an atom first developed? Describe this theory.
malfutka [58]

The existence of an atom was first suggested by Democritus, the idea is then developed in 1803 by John Dalton.

According to Dalton's atomic theory, matter is made up of atoms which are inseparable and can not be destroyed further. For a given element, all atoms have identical mass and properties. Atoms of two different elements combine to form compounds and rearrangement of these atoms results in chemical reaction.


7 0
3 years ago
How much sugar does a bottle of sparkling water have help me plz it for a science project
zubka84 [21]

Answer:

it has 0g of sugar (hopes this helps)

3 0
3 years ago
Read 2 more answers
What happens on a molecular level when a diatomic molecule is a gas but is then cooled to a solid?
irina1246 [14]

Answer:

As an example of the processes depicted in this figure, consider a sample of water. When gaseous water is cooled sufficiently, the attractions between H2O molecules will be capable of holding them together when they come into contact with each other; the gas condenses, forming liquid H2O. For example, liquid water forms on the outside of a cold glass as the water vapor in the air is cooled by the cold glass.

Explanation:

Hopefully that helps!

4 0
3 years ago
Other questions:
  • What is the wavelength (in nm) of radiation that has an energy content of 3.85 x10^3 kj/mol?
    13·1 answer
  • Fe(s)+Cl2(g)&gt;FeCl3(s)
    12·2 answers
  • A student is designing a device that can be used for communication. Which TWO waves on the electromagnetic spectrum should the s
    6·2 answers
  • How can you tell if an electric charge is present?
    13·1 answer
  • Given the density of iron (Fe) is 7.87 g/cm3, determine the mass of iron (in grams) in a rectangle block with the dimensions of
    12·1 answer
  • Does anyone knows the answer to this?​
    12·1 answer
  • Why do people say air is a poor conductor , but isn't conduction happens in solid?​
    11·1 answer
  • What is Dalton's law of partial pressure
    7·2 answers
  • Please answer quick
    9·1 answer
  • How many grams of water will be produced if you start with 4.0 grams of hydrogen and an excess of oxygen given the following bal
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!