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
Rus_ich [418]
3 years ago
15

A horizontal row of elements in the periodic table represents a group period

Chemistry
1 answer:
castortr0y [4]3 years ago
7 0

Answer:

Period

Explanation:

Periodic 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 and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.The electron affinity also increases along period because of greater positive charge.

You might be interested in
Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect? Light is made up of extr
Aliun [14]

The correct answer is

Energy of electrons depends on light’s frequency, not intensity.

As per photoelectric effect, if we incident a light on metal surface it will results into emission of electron from it

if we increase the number of photons the number of electrons will increase however if we increase the frequency the number of photons will not increase

While if we increase frequency the energy of electrons will increase as

Energy of photon = Work function of metal + kinetic energy of electrons

7 0
3 years ago
Read 2 more answers
Need help I don't remember what to do?
Lina20 [59]
I'm just doing the ones that you don't have numbers already for.
2.) just leave it alone and it's correct
3.) Mg + 2AgNo3 --> Mg(No3)2 + 2Ag
5.) just leave it alone and it's correct
8.) 10C3H8O3 + 15O2 --> 30CO2 + 4H2O
10.) P4 + 6Br2 --> 4PBr3
12.) 2FeCl3 + 6NaOH --> 2Fe(OH)3 + 6NaCl
13.) 2CH3OH + 3O2 --> 2CO2 + 4H2O
14.) 2Al + 3Cu(NO3)2 --> 2Al(NO3)3 + 3Cu
15.) 3CaCl2 + 2K3AsO4 --> Ca3(AsO4)2 + 6KCl
16.) 2NH3 --> N2 + 3H2
17.) 2H3PO4 + 3Ba(OH)2 --> Ba3(PO4)2 + 6H2O
19.) Mg3N2 + 6H2O --> 3Mg(OH)2 + 2NH3
I hope this helps you!!
4 0
3 years ago
Predict the product for the following reaction sequence.3,4-dimethyl-7-nonanol 3,4-dimethyl-7-nonanone 6,7-dimethyl-3-nonanone 6
ra1l [238]

Answer:

Hello your question is incomplete attached below is the complete question

answer : 6,7-dimethyl-3-nonanone ( B )

Explanation:

The product for the following reaction sequence as attached below is

6,7-dimethyl-3-nonanone

The following reaction sequence can be categorized under Carbon Nucleophiles.

Carbon Nucleophiles which can be used to convert  aldehydes and ketones into  carboxylic acids or alkenes.

7 0
3 years ago
Which of the following is most likely to be a covalently bonded, polar compound?
julia-pushkina [17]
The first 1 that u have
3 0
3 years ago
Read 2 more answers
An engineer measures the initial depth of liquid in a reactor vessel as 3.29 m and the final depth s 1.0487 m. What is the diffe
Mrac [35]

Answer:

2.24 m

Explanation:

3 0
4 years ago
Read 2 more answers
Other questions:
  • 1. Find at least 3 elements named after countries
    15·1 answer
  • Como se representan los elementos en la tabla¿?
    10·1 answer
  • a truck driver has 5 hours to get to a warehouse located 270 miles directly west of its current position if he drives at the ave
    8·1 answer
  • For the following list of acids, rank the acids in strength from weakest acid to strongest acid.
    14·1 answer
  • Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 64. g of hexane is mi
    11·1 answer
  • During the reaction of 2-methyl-2-butanol with the nucleophile-solvent mixture two layers are formed after shaking the reaction
    14·1 answer
  • Which alcoholic beverage derives its name from a dutch word meaning burnt wine?.
    13·1 answer
  • Part H In parts E, F, and G, which data sets (corrective lenses, glasses, or contacts) show the most similar variation between D
    13·1 answer
  • Why is water sometimes called the ""universal solvent?"".
    7·1 answer
  • Feeding levels within an ecosystem are
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!