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The Periodic Table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the elements as their atomic number increases: a new row is begun when chemical behaviour begins to repeat, meaning that elements with similar behaviour fall into the same vertical columns.
The fourth period contains 18 elements, beginning with potassium and ending with krypton. Iron is also in Period (row) 4. As a rule, period 4 elements fill their 4s shells first, then their 3d and 4p shells, in that order, however there are exceptions, such as chromium.
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∙ 11y ago
Wiki User
∙ 13y agoIron and potassium are natural chemical elements, solid metals; and as metals, tend to give up electrons leaving their ions positively charged.
Wiki User
∙ 9y agoPotassium and iron are kept in period 4. This is because they have same number of shells.
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similar properties
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What salt bridge is used in a copper zinc electrochemical cell?
Potassium Chloride is the most common salt bridge for this cell Potassium Chloride is the most common salt bridge for this cell
What colour is copper iodide and potassium sulphate?
Potassium sulfate would be colorless; copper iodide is probably blue or green (I don't know which off the top of my head, but copper salts are generally either blue or green).
What happens when potassium iodide is mixed with copper sulphate?
In the laboratory, copper(I) Iodide is prepared by simply mixing an aqueous solutions of potassium iodide and a soluble copper(II) salt such copper sulphate. : :: Cu2+ + 2I− → CuI2 The CuI2 immediately decomposes to iodine and insoluble copper(I) iodide, releasing I2. : :: 2 CuI2 → 2 CuI + I2
What is the balanced reaction of copper 2 nitrate and potassium hydroxide?
Your balanced chemical equation for this double replacement reaction would be: Cu(NO3)2 + 2KOH ----> Cu(OH)2 + 2KNO3 Therefore, you would end up with copper II hydroxide and potassium nitrate.
Write the chemical symbols of the following elements gold copper potassium silver platinum and Iron?
The chemical symbols of gold, copper, potassium, silver, platinum, and Iron are Au, Cu, K, Ag, Pt, and Fe respectively.
What is copper carbonate plus potassium?
Potassium Carbonate and Copper metal
What salt bridge is used in a copper zinc electrochemical cell?
Potassium Chloride is the most common salt bridge for this cell Potassium Chloride is the most common salt bridge for this cell
What is produced when Copper nitrate and potassium thiocyanate react?
copper (thiocyanate)2 and potassium nitrate
The differences in the reactions of potassium magnesium and copper with water?
the diffrences in reaction of potassium, magnesium and copper
what is the balanced equation for copper(II)oxide and potassium chloride?
The balanced equation for copper(II) oxide and potassium chloride is CuO + 2KCl → CuCl2 + K2O When copper(II) oxide reacts with potassium chloride then it forms copper(II) chloride and potassium oxide.
What happens when copper metal reacts with potassium cyanide?
Copper metal is less reactive than potassium so it will not react with potassium cyanide.
Put the metals caesium calcium and potassium in order of reactivity most reactive first?
Magnesium, Iron, Copper. Most reactive - least reactive.
Does potassium sorbate contains any copper ions?
No, it is a compound of the metal potassium and the sugar sorbitol.
What colour is copper iodide and potassium sulphate?
Potassium sulfate would be colorless; copper iodide is probably blue or green (I don't know which off the top of my head, but copper salts are generally either blue or green).
What groups of the periodic table does strontium barium copper magnesium potassium and potassium and sulfur?
They are in various groups.
What compound is formed from potassium and nitrogen?
The common name for potassium nitrate is saltpeter, but I don't think potassium nitride has a common name.
Is calcium less reactive of potassium calcium and copper?
Yes.
