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
Katena32 [7]
3 years ago
6

The periodic table is useful because it is organized to show many patterns and trends. What property shows a decrease moving fro

m the bottom of Group 3 to the top of Group 3?
Chemistry
1 answer:
Alex73 [517]3 years ago
3 0

Atomic radius

Explanation:

A decrease in moving from the bottom of Group 3 to the top of the group shows an increase in trend from top to bottom.

The atomic radius of elements increases from top to bottom and decreases from the bottom to the top.

The elements in group 3 are B, Al , Ga, In and Tl

  • Atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.
  • Downs a group from top to bottom, atomic radii increases progressively due to successive shells being added.
  • This compensates for the size reducing effect of the increased nuclear charge.

learn more:

Atomic radii brainly.com/question/5048216

#learnwithBrainly

You might be interested in
Which of the following is not a physical change?
lisabon 2012 [21]

Answer:

b or d

Explanation:

4 0
3 years ago
A weak bond called a ______ bond results from an attraction between a slightly positive region in a molecule and a slightly nega
tamaranim1 [39]

<u>Answer:</u> The weak bond having slightly positive region and a slightly negative region is polar covalent bond.

<u>Explanation:</u>

Covalent bond is defined as the bond which is formed by the sharing of electrons between the atoms. <u>For Example:</u> HCl, CH_4 etc..

They are of two types:

  • <u>Polar covalent bond:</u> This 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.

In this bond, a dipole is created. More electropnegative atom will have a slight negative charge and less electronegative atom will have a slight positive charge. For Example: CO_2,NO_2 etc..

  • <u>Non-polar covalent bond:</u> This bond is formed when there is no difference in electronegativity between the atoms. When atoms of the same element combine, it results in the formation of non-polar covalent bond. For Example: N_2,O_2 etc..

Hence, the weak bond having slightly positive region and a slightly negative region is polar covalent bond.

7 0
3 years ago
As two objects that are oppositely charged are brought together which will happen
BaLLatris [955]
Opposites attract, like for example magnets, one is positive and the other is negatively charged, they will attract
5 0
3 years ago
Covalent Bonds <br><br> How many covalent bonds can Nitrogen atoms make ?
notsponge [240]
A nitrogen atoms can make 3 covalent bonds because it has three unpaired electrons

6 0
3 years ago
Read 2 more answers
The theoretical yield of a reaction is the amount of product obtained if the limiting reactant is completely converted to produc
Elis [28]

Answer: 9.9 grams

Explanation:

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

a) moles of H_2

\text{Number of moles}=\frac{8.150g}{2g/mol}=4.08moles

b) moles of C_2H_4

\text{Number of moles}=\frac{9.330g}{28g/mol}=0.33moles

H_2(g)+C_2H_4(g)\rightarrow C_2H_6(g)

According to stoichiometry :

1 mole of C_2H_4 combine with 1 mole of H_2

Thus 0.33 mole of C_2H_4 will combine with =\frac{1}{1}\times 0.33=0.33 mole of H_2

Thus C_2H_4 is the limiting reagent as it limits the formation of product.

As 1 mole of C_2H_4 give =  1 mole of C_2H_6

Thus 0.33 moles of C_2H_4 give =\frac{1}{1}\times 0.33=0.33moles  of C_2H_6

Mass of C_2H_6=moles\times {\text {Molar mass}}=0.33moles\times 30g/mol=9.9g

Thus theoretical yield (g) of C_2H_6 produced by the reaction is 9.9 grams

7 0
3 years ago
Other questions:
  • Help plz I'm confused ​
    11·2 answers
  • Atoms bond to other atoms through their electrons. The following analogy will be used to help us understand how this occurs. Ima
    9·1 answer
  • In the space, show a correct numerical setup for calculating the number of moles of CO2 present in 11 grams of CO2
    11·1 answer
  • Identify each number that is given is scientific notation
    9·1 answer
  • Sonar is a technology that uses sound waves to calculate the distance to an object. Explain why you think sonar is useful for sc
    7·1 answer
  • If the initial pressure of a gas is 1.0 atm at 273k what is the new volume at 200k
    8·1 answer
  • How much stronger is methane than carbon dioxide as a greenhouse gas?
    6·1 answer
  • Automobile air bags use the decomposition of sodium azide as their sources of gas for rapid inflation, represented in the reacti
    15·1 answer
  • How many sodium atoms (Na) are in 3.00 moles of Na3PO4?
    10·1 answer
  • Hot air is more / less dense than cooler air. Choose the correct one.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!