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
Zepler [3.9K]
2 years ago
15

How does the number of substituents around a central atom affect the shape of a molecule?

Chemistry
1 answer:
SSSSS [86.1K]2 years ago
4 0

Explanations:- The shape of the molecule depends on bonding groups and lone pair of electrons present in the central atom. We do the sum of these bonding groups and lone pair of electrons for the shape of the molecule. The presence of lone pair of electrons affects the shape (molecular geometry) of the molecule.

For example, methane is tetrahedral as four hydrogen atoms are bonded to carbon and there is no lone pair of electrons present on C. Here, the sum of bonding groups and lone pairs is 4.

On the other hands, in water, two H atoms are bonded to the central oxygen atom and also there are two lone pair of electrons present on oxygen atom. The sum is also 4 here but the molecular geometry is bent. The difference in geometries of these two molecules is because of the repulsion between the two lone pairs present on oxygen atom.

If we take an example of boron hydride then three H atoms are bonded to B and there is no lone pair of electrons present on B. The sum is 3 and so it's shape is trigonal planar.

So, the number of bonded atoms as well as the number of lone pairs present on the central atom decides the shape of the molecule.

If this helped, please give brainliest.

You might be interested in
What is the formula (with cation and anion charges) for copper (II) hydroxide? ​
Thepotemich [5.8K]

Answer:

Cu²⁺(OH)⁻₂

Explanation:

Step 1: Find the symbols for the substances

For copper, see your periodic table. Copper is "Cu".

For hydroxide, see your polyatomic ions chart. Hydroxide is "OH".

Step 2: Find the charges for each element.

Copper (II)'s charge is 2, which is the roman numerals in the brackets.

Hydroxide's charge is -1.

Charges are written as superscripts. You do not need to write "1".

In formulas, write the positively charged atom first.

Cu²⁺(OH)⁻   Put brackets around hydroxide because it has 2 elements.

Step 3: Write the number of atoms.

The number of atoms that an element has is the same as its partner's charge.

The charge of copper is 2, so hydroxide has 2 atoms.

The charge of hydroxide is 1, so copper has 1 atom.

Cu²⁺₁(OH)⁻₂

You do not need to write the "1" for atoms.

Cu²⁺(OH)⁻₂

8 0
3 years ago
Definition of periodic trends
Dmitriy789 [7]

Answer:

.Periodic trends are specific patterns in the properties of chemical elements that are revealed in the periodic table of elements. Major periodic trends include electronegativity, ionization energy, electron affinity, atomic radii, ionic radius, metallic character, and chemical reactivity.

7 0
3 years ago
So I lost my sense of taste yesterday.
Mama L [17]

Answer:

I'm unaware of what but maybe hot sauce?

Explanation:

4 0
2 years ago
Read 2 more answers
How many helium nuclei fuse together when making carbon?
Gemiola [76]
The answer is the 3. Hope this helped!
8 0
3 years ago
Please help
Colt1911 [192]
A i belive is the correct answer

3 0
2 years ago
Other questions:
  • What is the density of an object with a mass of 7.92g and a volume of 3.25mL? 
    9·1 answer
  • When an equation is used to calculate the amount of product that will form during a reaction, then the value obtained is called
    7·2 answers
  • This planet is second from the Sun. It is named after the Roman god of beauty.
    15·1 answer
  • What is the best description of the Bohr model of the atom? The atom consists of a positively charged material with negatively c
    9·2 answers
  • When the optically active carboxylic acid below is decarboxylated using the conditions typical in the acetoacetate synthesis, wi
    5·1 answer
  • If the equilibrium constant for a reaction is 0.00010, what does this tell us about the position of equilibrium for that reactio
    10·1 answer
  • I need help solving this!!!
    8·1 answer
  • A pan containing 20 grams of water was allowed to cool from temperature of 95 degrees C. If the amount of heat released is 1200
    8·1 answer
  • 2. The heat energy fequired to change a
    8·1 answer
  • A student added 3 g of melted wax to a container that weighed 15 g. What is the weight of the container after the wax hardens?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!