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
tankabanditka [31]
4 years ago
13

An elements can be predicted from its location on the periodic table

Chemistry
2 answers:
vekshin14 years ago
7 0
The periodic table<span> is a systematic arrangement of the </span>elements. They are arranged according to their atomic number, the number of protons (which in the case of atoms is also the number of electrons) of each atom. Some of the properties of the elements can be predicted<span> given their </span>location<span> in the </span>periodic table<span>.</span>
Lorico [155]4 years ago
5 0
The periodic table is a collection of elements that is arranged based on their atomic number (the number of protons), its atomic weight (protons + neutrons I believe), and its chemical symbol. Now usually for the low ranking numbers, you can easily identify them based on their atomic number, since everyone knows that 1 is hydrogen, 2 is helium, and it goes on from there.

But to guess an element based on its position is actually basing it off its column position. There are 18 columns. You can't exactly predict the exact element, but its properties through these columns
Column 1 is alkali metals (excluding hydrogen)
Column 2 is alkaline metals
Columns 3-12 are transition metals
Column 17 are halogens
Column 18 are noble gasses
Columns 13-16 are a mix of metalloids, nonmetals, and other metals

You might be interested in
Determine whether the material is a mineral or a non-mineral based on the description
almond37 [142]

Answer:

  • Calcium is homogeneous Three  percent of Earth's crust is made  of calcium Mineral
  • Glycerin is a viscous liquid at room temperature.  Non-mineral
  • Emerald is hard and does not  decay. Its chemical formula is  Be3Al2(SIO3)6  Mineral
  • Chlorophyll is produced in plants during photosynthesis  Non-mineral

Explanation:

Minerals are generally solid and inorganic substances, with defined crystalline structures, that exist in the earth's crust, formed by one or more chemical elements.

Calcium is the fifth element in abundance in the earth's crust, it is found forming mineral compounds such as calcite and dolomite or rocks such as marble, limestone and dolomite.

Glycerin is a colorless, slimy and sweet-tasting substance that is obtained from animal and vegetable fats and oils. According to its characteristics, it does not have a solid structure, which is why it is considered a non-mineral.

Emerald is a cyclic silicate of beryllium and aluminum whose chemical formula is Be3Al2(SiO3)6, it has a well-defined crystalline structure.

Chlorophyll is a green pigment that is present in the leaves and stems of many vegetables and is responsible for the photosynthesis process; does not have a crystalline structure defined by what is considered a non-mineral.

3 0
3 years ago
Read 2 more answers
How long does Neptune take to rotate on its axis?
Ray Of Light [21]
23.934 Hours Is how long it tales.
8 0
3 years ago
The valance number of M is 3 . what is the formula of its phosphorus​
lakkis [162]
The formula for phosphorus is P4
3 0
3 years ago
A student wishes to prepare 25mL of 0.1M NaOH from 6M NaOH.
liraira [26]

Answer:

Na(OH)4

Explanation:

Look at the charges and add them up

Na(OH) Na(OH)

7 0
3 years ago
In a particular experiment at 300 ∘C, [NO2] drops from 0.0100 to 0.00800 M in 100 s. The rate of appearance of O2 for this perio
Tems11 [23]

Answer:

1\times{10}^{-5}\frac{M}{s}

Explanation:

The stoichiometry for this reaction is  

2NO_2\rightarrow2NO+O_2

The rate for this reaction can be written as  

-r_{NO_2}=-\frac{d\left[NO_2\right]}{dt}=\frac{(0.01-0.008)M}{100s}=2\times{10}^{-5}\frac{M}{s}

This rate of disappearence of NO_2 can be realated to the rate of appearence of O_2 as follows  (the coefficients of each compound are defined by the stoichiometry of the reaction)

-r_{O_2}=-r_{NO_2}\times\frac{coefficient\ O_2\ }{coefficient\ NO_2}=2\times{10}^{-5}\frac{M}{s}\times\frac{1\ mole\ O_2\ }{2\ mole\ NO_2}=1\times{10}^{-5}\frac{M}{s}

6 0
4 years ago
Other questions:
  • There are four equal-sized bowls with equal amounts of milk.
    5·1 answer
  • True or False? Another way to control the rate of a reaction is to change the activation energy needed.
    7·1 answer
  • How many moles of TNT would be detonated if you used 539.88 grams of TNT? The structure of TNT is C7H5N3O6. Round your answer to
    9·1 answer
  • Which of these reactions can be classified as synthesis reactions?
    6·1 answer
  • How many moles of N2O3 contain 2.55x10^24 oxygen atoms?
    14·2 answers
  • "Strike anywhere matches contain the compound tetraphosphorus trisulfide, which burns to form tetraphosphorus decaoxide and sulf
    7·1 answer
  • What is the kinetic energy of the ball as it is half way through the fall?
    11·1 answer
  • It takes 35 mL of 0.75M HCl to neutralize a 20 mL solution of unknown base. What is the molarity of the unknown base?
    14·1 answer
  • Can anyone please help?? I need this turned in soon
    14·1 answer
  • Dogs and shrews are both members of this class:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!