Interpreting the periodic table
Answers
Here is an image of the periodic table. Hope this helps.
Final answer:
By increasing atomic number, the Periodic Table organises elements in chemistry. Since groups of elements share comparable properties because they all have the same number of electrons in their outer shell, each row represents a period and each column represents a group.
Explanation:
Interpreting the Periodic Table involves understanding its structure and how the elements are arranged.Elements in the periodic table are ordered by increasing atomic number, which corresponds to the number of protons in an atom's nucleus. Each row represents a period and the columns represent groups. Because all members of a group have an equal number of electrons in their outermost shell, all members of that group share characteristics. For instance, the elements fluorine (F) and chlorine (Cl), which both belong to group 17, have seven electrons in their outermost shells and share other characteristics. The Periodic Table is an essential tool in the field of chemistry as it allows scientists to understand patterns and properties of elements.
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Related Questions
What is alloys? write the composition of bronze and brass
Identify the spectator ions in this reaction. Check all that apply. 2H+ + CrO4– + Ba2+ + 2OH– Ba2+ + CrO4– + 2H2O H+ CrO4– Ba2+ OH– 2H2O
Why aren't the atomic masses of most elements whole numbers
In Hooke’s law, what does k represent? A. the distance the spring stretches B. the elastic constant, a number that tells the relative strength of the spring C. the constant of gravity D. the amount of force acting on the spring
neutron
B.
electron
C.
proton
D.
nucleus
Answers
The answer would be B, an electron because the proton is positive, neutron is neutral, and the nucleus is the center of the atom.
I know this because I looked in my science book.
Hope I helped!
- Amber
In the mitochondrion, small molecules combine with
to produce
and carbon dioxide.
This process releases a large amount of
.
Answers
Answers
Answer:
16.4 L
Explanation:
we can use the combined gas law equation that gives the relationship among volume, temperature and pressure conditions of gases.
P1V1/T1 = P2V2/T2
STP conditions are standard temperature and pressure conditions
P1 is standard pressure = 1 atm , T1 is standard temperature = 273 K
and V1 is the volume
P2 is pressure, T2 is temperature and V2 is volume at the second instance
temperature is in kelvin scale,
512 ° + 273 = 785 K
substituting the values in the equation
1 atm x 10.0 L / 273 K = 1.75 atm x V / 785 K
V = 16.4 L
new volume is 16.4 L
What is the element
Answers
The element which is a non-metal and present in the same group as lead is carbon as they both have four electrons in their valence shell.
What is an element?
An element is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
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~ I don't know if this will help, but I hope it does. ~
Sr(OH)2 (aq)
HBr (aq)
HCN (aq)
KOH (aq)
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The pH of solution often differs. Assuming equal concentrations, The rank these solutions by pH are in the order of Highest pH to Lowest pH are Sr(OH)2(aq), KOH (aq), NH3(aq), HCN (aq) and HBr (aq).
- Electrolytes when ranked on the basis of their strength are known to be weak and strong electrolytes.
The Strong electrolytes often dissociate fast in water when compared to the weak electrolytes that often dissociate partially.
- To determine pH from acids or base, you need to note which is the stronger acid/base. The pH scale ranges often from 0 to 14.
Acids are known to have pH value smaller than 7, bases are known to have pH value greater than 7, and neutral salts have a pH value of 7.
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Answer:
Highest pH(most basic)
Sr(OH)2(aq)
KOH (aq)
NH3(aq)
HF (aq)
HClO4(aq)
Lowest pH(most acidic)
Explanation:
The concentration of H+ ion will determine the pH of a solution. The pH actually reflects the ratio of H+ ion and OH- since both of them can combine into water. Solution with more H+ ion will have a lower pH and called acidic, while more OH- will have high pH and be called basic. Strong acid/base will be ionized more than weak acid/base.
Sr(OH)2(aq) = strong base, release 2 OH- ion per mole
KOH (aq) = Strong base, release 1 OH- per mole
NH3(aq) = weak base, release less than 1 OH- per mole
HF (aq) =strong acid, release 1 H+ per mole
HClO4(aq) = stronger acid, release 1 H+ per mole
B. From a liquid to gas
C. From solid to liquid
D. From a gas to plasma
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Answer:
is the letter A. from gas to a liquid