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
Julli [10]
3 years ago
11

Mendeleev put elements in groups while creating the periodic table. What important role do groups play in the structure of the p

eriodic table? (5A)
Groups show similar chemical properties about the elements.
Groups show similar chemical properties about the elements.

Groups show what state of matter the element will be at ground state.
Groups show what state of matter the element will be at ground state.

Groups show how important elements to living things.
Groups show how important elements to living things.

Groups show the energy level of the element.
Groups show the energy level of the element.
Chemistry
1 answer:
NikAS [45]3 years ago
3 0

Answer:

Groups show similar chemical properties about the elements

Explanation:

The periodic table is divided into groups and periods. Groups are vertical while periods are horizontal.

All elements in the same group possess the same number of outermost shell electrons. This number of outermost shell electrons controls the reactivity of the elements in the group.

Hence, groups show similar chemical properties of the elements in them, Groups separate elements into families which assist in the speedy study of elements.

You might be interested in
A researcher wants to determine if a unicellular organism he discovered is an autotroph or a heterotroph. He radioactively label
GaryK [48]

Answer:

A

Explanation:

Autotrophs utilize the energy from  sunlight to reduce carbon dioxide to carbohydrates (glucose). The energy from the sunlight is used to split water into H+ and O2- and the H+ used in the reduction process. The labeled carbon in the carbon dioxide will, therefore, be incorporated by the autotrophs in the carbohydrates made in photosynthesis.  

4 0
3 years ago
35.2 J of heat is
ruslelena [56]

The specific heat : c = 0.306 J/g K

<h3>Further explanation</h3>

Given

Heat = 35.2 J

Mass = 16 g

Temperature difference : 7.2 K =

Required

The specific heat

Solution

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

Input the value :

c = Q / m.∆T  

c = 35.2 / 16 x 7.2

c = 0.306 J/g K

7 0
3 years ago
The molecule shown is a
Pani-rosa [81]

c is the answer a benzene

8 0
4 years ago
When we say an object is hot, we are describing its velocity thermal energy wavelength chemical energy?
boyakko [2]
I think the correct answer from the choices listed above is the second option. When we say an object is hot, we are describing its thermal energy. It<span> is the </span>energy<span> that comes from heat. This heat is generated by the movement of tiny particles within an object. </span> Hope this answers the question.
3 0
4 years ago
1. Carson completed conductivity testing on the solutions shown in the data table below and recorded his findings in the conduct
pishuonlain [190]

Answer:

See below :)

Explanation:

There is an evident reason why some of the solutions Carson's has listed and observed, does conduct electricity and some that do.

A flow of electrical charge is called an electric current. Ions are atoms, or sets of atoms, that contain an electrical charge. There are two types of ions, cation or a positively charged ion containing a deficiency of electrons, and anion or a negatively charged ion which contains a surplus of electrons. When a solution conducts electricity the charge is carried within by ions that move through the solution. The larger the number of ions in the solution, the better the conductivity of the solution is. Pure water does not conduct very well because it contains very few ions, but when table salt (NaCl) is dissolved in the water, this solution does conduct well because the solution contains a more abundance of ions. The majority of the ions come from the table salt, chemically names sodium chloride. Because Sodium contains its sodium ions, and these are positive charge and chloride ions which is a negative charge, it is called an ionic substance. Not every substance is made up of ions, one such example is sugar (C12H22O11). Sugar is made up of uncharged particles also called molecules. Although sugar is a substance its molecules do not hold a charge, thus when sugar is dissolved in water, the solution does not conduct electricity, due to the lack of ions in the solution.

Therefore, depending on the ions that make up the compound, the substance would or would not conduct electricity.

4 0
3 years ago
Other questions:
  • Will Florine react? will it combine with other elements?
    14·1 answer
  • An organism that is able to form nutritional organic substances from simple inorganic
    13·1 answer
  • CHEM
    7·2 answers
  • The out side t layer is the linnets layer in the earth
    15·1 answer
  • Is diamond cutting glass a physical or chemical property?
    10·1 answer
  • How many magnesium atoms are there in one molecule
    7·2 answers
  • Would happen if a positive charge was placed between the two charges and allowed to move?
    6·1 answer
  • Explain why hydrogen chloride is a gas at room temperature
    15·1 answer
  • Is the dissolution of borax in water a temperature dependent reaction or is it spontaneous at all temperatures at which water is
    10·1 answer
  • Which electron is, on average, close to the nucleus: an electron in a 2s orbital or an electron in a 3s orbital?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!