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
Softa [21]
3 years ago
12

Why are there groups, in the periodic table?

Chemistry
2 answers:
Rasek [7]3 years ago
7 0
Groups help organize the elements. Elements of the same group have similar chemical qualities. So looking at an element’s group on the periodic table can help you identify some of it’s characteristics such it’s as reactivity with other elements or of it’s a good conductor.
zepelin [54]3 years ago
6 0
To classify the elements and make them easier to understand
You might be interested in
Mengapakah gelung pemanas di dalam cerek elektrik berada di dasar cerek?​
shepuryov [24]
English, please. Does this have something to do with an electrical barometer
5 0
3 years ago
Write nuclear symbols for each of the isotopes Carbon-14 Cobalt-60 Gold-197 Uranium-235
Marina CMI [18]

Answer and explanation:

The nuclides with the same atomic number, but different mass numbers are isotopes.

So, in this case, each species will have the same atomic number and a different mass number, that will be the same that it is written in the name of the element:

\begin{gathered} -\text{ Carbon-14:}C_6^{14} \\  \\ -\text{ Cobalt-60: }Co_{27}^{60} \\  \\ -\text{ Gold-197:  }Au_{79}^{197} \\  \\ -\text{ Uranium-235: }U_{92}^{235} \end{gathered}

5 0
1 year ago
What 6 elements in the periodic table are named after real people?
Romashka [77]
Curium (Cm, 96) – Pierre and Marie Curie einsteinium (Es, 99) – Albert Einsteinfermium (Fm, 100) – Enrico Fermigallium (Ga, 31) – both named after Gallia (Latin for France) and its discoverer, Lecoq de Boisbaudran (le coq, the French word for 'rooster' translates to gallus in Latin)hahnium (105) – Otto Hahn (Dubnium, named for Dubna in Russia, is the IUPAC-accepted name for element 105)lawrencium (Lr, 103) – Ernest Lawrencemeitnerium (Mt, 109) – Lise Meitner<span>mendelevium (Md, 101) – Dmitri Mende</span>

<span>obelium (No, 102) – Alfred Nobel<span>roentgenium (Rg, 111) – Wilhelm Roentgen (formerly Ununumium)</span><span>rutherfordium (Rf, 104) – Ernest Rutherford </span><span>seaborgium (Sg, 106) – Glenn T. Seaborg</span></span>

4 0
3 years ago
For the following reaction, 9.60 grams of butane (C4H10) are allowed to react with 17.0 grams of oxygen gas. butane (C4H10) (g)
dangina [55]

Answer:

14.4 g of CO_{2} can be produced.

Explanation:

Balanced equation: 2C_{4}H_{10}+13O_{2}\rightarrow 8CO_{2}+10H_{2}O

                                        Molar mass (g/mol)

                  C_{4}H_{10}                    58.12

                    O_{2}                         32

                  CO_{2}                       44.01

So, 9.60 g of C_{4}H_{10} = \frac{9.60}{58.12}mol=0.165mol

      17.0 g of O_{2} = \frac{17.0}{32}mol=0.531mol

According to balanced equation-

2 moles of C_{4}H_{10} produce 8 moles of CO_{2}

So, 0.165 moles of C_{4}H_{10} produce (\frac{8}{2}\times 0.165)mol of CO_{2}  or 0.660 moles of CO_{2}

13 moles of O_{2} produce 8 moles of CO_{2}

So, 0.531 moles of O_{2} produce (\frac{8}{13}\times 0.531)moles of CO_{2} or 0.327 moles of CO_{2}

As least number of moles of CO_{2} are produced from O_{2} therefore O_{2} is the limiting reagent.

So, maximum amount of CO_{2} that can be formed = 0.327 moles

                                                                              = (0.327\times 44.01)g

                                                                              = 14.4 g

3 0
3 years ago
A microscope containing two or more lenses is an
kicyunya [14]
<span> A compound <span>lens microscope. </span></span>
6 0
3 years ago
Other questions:
  • Which formula represents an ionic compound AICI3
    12·1 answer
  • The hydrogen atomic emission spectrum includes a UV line with a wavelength of 92.3 nm.
    12·1 answer
  • Classify each of the following reactions as a combination, combustion, decomposition, single-displacement, double-displacement,
    11·1 answer
  • Strong acids have a ______ value of Ka and the equlibrium for the reaction with water lies far to the _______.
    7·1 answer
  • A substance is found to have a volume of 50 mL in an open beaker. In a flask, it changes
    7·1 answer
  • A reaction is most likely to occur when reactant particles collide with
    10·1 answer
  • If the temperature of a chemical reaction was reduced, how could the reaction rate most likely be increased?
    11·1 answer
  • Why is it impostant during a science project to record measure
    5·2 answers
  • Why would people want to reprocess fuel rods from a nuclear power plant? (1 point) It prevents the fuel rods from emitting harmf
    7·1 answer
  • What is the first step in the scientific process?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!