0
Noble gasses are least reactive of all the elements. So the least reactive element in the period 4 is Krypton. It is a noble gas with an atomic number of 36.
Wiki User
∙ 9y ago
عبدالجبار البيشي
Add your answer:
Earn +20 pts
This metal is very reactive has properties similar to magnesium and is in the same period as bromine?
Calcium, period 4 group 2, very reactive
Which element in period 4 is classified as an active nonmetal?
In the fourth period of the periodic table of elements, the most reactive element is potassium. It is an alkali metal, and it has the atomic number of 19.
Which of the following elements is the least reactive?
Helium is least reactive element.It forms no compounds.Platinum is least reactive metal.
What is the element in period 4 and group 6?
Chromium is the element in period 4 and group 6.
What element is an alkaline earth metal found in period 4 of modern periodic table?
Calcium
This metal is very reactive has properties similar to magnesium and is in the same period as bromine?
Calcium, period 4 group 2, very reactive
Which element in period 4 has the highest electronegativity?
The element in period 4 of the Periodic Table with the highest electronegativity is krypton (2.96). The period 4 element with the lowest electronegativity is potassium (0.82).
Which element in period 4 is classified as an active nonmetal?
In the fourth period of the periodic table of elements, the most reactive element is potassium. It is an alkali metal, and it has the atomic number of 19.
What Period 4 element is in the same group as F?
Br (Bromine) is a period 4 element in the same group as F.
What element is a metal of group 4 with 28 protons?
There is no element with 28 protons in group 4. I think you are getting confused with group 4 and PERIOD 4. In period 4, the element with 28 protons is Nickel.
What period on the table is scandium?
Scandium is a period 4 element.
Which of the following elements is the least reactive?
Helium is least reactive element.It forms no compounds.Platinum is least reactive metal.
What is the difference between period 4 and 5 on the periodic table?
There are 4 electronic shells in period 4 while there are 5 shells in period 5.Elements of period 4 are smaller in size as compared to elements of period 5.Example of period 4 element is potassium and period 5 element is tin.
Are atoms with fewer electrons more reactive?
That isn't necessarily true. The Halogens (group 17) follow what you said, but the Alkali metals (group 1) don't. As you go down the column, the elements get more reactive for group 1; Lithium is the least reactive and Francium (speculated) is the most reactive. On the other hand, as you down the Halogens, they do get less reactive. Astatine (speculated) is the least reactive while Fluorine is the most reactive element of them all. Hope that clears up things!
What is An element in group 4 and the third period?
There is no such element on the Periodic Table
What element is Group 1 period 4?
element K, or potassium
What are the two highly reactive elements in period 4?
the metal potassium and the nonmetal bromine
