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
jok3333 [9.3K]
3 years ago
9

Which statement is true about the ionic size of the elements in a group as one moves from top to bottom in that group?

Chemistry
2 answers:
nekit [7.7K]3 years ago
8 0

Answer:

Ionic size increases from top to bottom within the group.

Explanation:

  • Ions are formed when neutral atoms of elements gain or lose electron(s).
  • The ionic radius is the distance from the nucleus of an ion to the outermost energy level.
  • The ionic size or radius increases down the group as the number of energy level increases.
  • Therefore, an ion of an element lower in the group will be larger than the ion of an element higher in the group.
  • For example, an ion of potassium, K+, is larger in size compared to the ion of sodium, Na+ since K+ has more energy levels than Na+.
Maru [420]3 years ago
8 0

Answer:

Option B = ionic sizes increases from top to bottom.

Explanation:

Definition of atomic radii:

The atomic radius is the distance between center of two bonded atoms.

Cation:

When an atom lose the electrons the formed is called cation.

e.g Na⁺ sodium lose one electron and form cation.

Anion:

when an atom gain the electrons the ions formed is called anion.

e.g N³⁻

Trend along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase.The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases. Same is the case with ions. Ionic size decreases moving from left to right.

Trend along group:

In group by addition of electron atomic radii increase from top to bottom due to increase in atomic number and addition of extra shell. The ionic size also increases from top to bottom.

If we compare the cationic and anionic size with neutral atomic radii, the anionic size is greater than neutral atomic radii because of addition of extra shell while cationic size is smaller because of removal of one electronic shell.

You might be interested in
Why does every chemical reaction require a certain amount of activation energy?
Savatey [412]

The answer could possibly be D.) The product have more potential than the activated complex OR C.) Forming the activated complex requires energy .

4 0
3 years ago
Read 2 more answers
Systems in nature tend to undergo changes towards?
kupik [55]
Lower energy and more disorder
8 0
3 years ago
What is the answer to this ?
Angelina_Jolie [31]

Answer:

it is either d or c

Explanation:

8 0
2 years ago
Read 2 more answers
Why don't I need prefixes to designate the number of each type of element when naming ionic compounds?
scoray [572]

We use prefixes in ionic compounds Don't use numeric prefixes like mono, di, tri, etc. when naming ionic compounds - they are used only to denote covalent molecular compounds.

5 0
2 years ago
Which of these is not a feature of the Earth's lithosphere?
makkiz [27]
The answer I’m pretty sure is c) the upper mantle
3 0
2 years ago
Read 2 more answers
Other questions:
  • 78.2 divided by 32cm³<br><br><br>​
    7·2 answers
  • Please help! brainliest, rattings, thanks, etc.
    14·1 answer
  • Which of these best describes the difference between the formulas for nitrogen monoxide and nitrogen dioxide? Which of these bes
    9·1 answer
  • Enzymes are proteins that speed up chemical reactions in the body. How do they work?
    9·1 answer
  • Where all broken angeles but just because you got broken wings dont mean you can't fly. &lt;3
    7·2 answers
  • Which is longer? <br> 1 mile or 1 kilometer
    12·1 answer
  • Will velocities ever be equal?
    10·1 answer
  • Which explanation of the solar system best fits the observations of the planets and how they orbit the sun?
    11·1 answer
  • Which process produces co2?
    6·2 answers
  • PLEASE HELP ME ASAP: Some students are using samples of different substances for a lab investigation. They plan to observe the p
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!