Which Element Below Is Least Reactive?

Noble gases are the least reactive of all known elements. That’s because with eight valence electrons, their outer energy levels are full. The only exception is helium, which has just two electrons.

How do you know which element is least reactive?

The reactivity of an element can be determined by looking at the electron configuration of the element. The least reactive elements are those who have a full outermost valence shell ie they have 8 electrons in the outer shell so elements such as helium, neon, radon or the transition elements.

Which element below is least reactive Brainly?

Answer: The least reactive elements are the noble gases .

What is the least reactive thing?

The least reactive elements are the noble gases. Within this group, helium is the least reactive element, forming no stable compounds. Metal can have multiple oxidation states and tend to have intermediate reactivity. Metals with low reactivity are called noble metals.

Where is the least reactive element located?

In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom . More reactive metals have a greater tendency to lose electrons and form positive ions .

How can you tell which element is more reactive?

The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water, for example.

Which is more reactive N or NE?

Neon: 1s2, 2s2, 2p6. As we can see from the electronic configurations, neon has a fully filled outer shell and hence is non-reactive . ... Hence, it is much easier for oxygen to complete its octet, as compared to nitrogen and that is why, oxygen is more reactive than nitrogen. Hope this helps.

Which element is least reactive in oxygen?

Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That’s because they have eight valence electrons, which fill their outer energy level.

Which is the least reactive metal?

Platinum is the least reactive of all the options. Aluminium, iron are also formed in combined forms in the natural surroundings.

Which of the following given elements is least reactive * 2 points?

Answer Expert Verified

Helium is the least reactive element in the reactive series. Helium is a noble gas. It’s chemical symbol is He and it’s atomic number is 2. It’s boiling point is lowest among all elements.

Which is the least reactive element in period 3?

Silicon . Silicon (symbol Si) is a group 14 metalloid. It is less reactive than its chemical analog carbon, the nonmetal directly above it in the periodic table, but more reactive than germanium, the metalloid directly below it in the table.

Which element mentioned above is highly reactive?

Reactivity of Group 1 Elements

Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.

Does reactivity increase across a period?

Period – reactivity decreases as you go from left to right across a period. The farther to the left and down the periodic chart you go, the easier it is for electrons to be given or taken away, resulting in higher reactivity. Period – reactivity increases as you go from the left to the right across a period .

What element is least reactive to water?

Why is neon the least reactive element?

Neon, along with helium, argon, krypton and xenon, make up the group known as noble gases. These are the most stable and least reactive elements due to having full valence shells (the outer shell has the max number of electrons, two for helium, eight for the rest).

Which metal is most reactive and stored in kerosene?

Answer: Sodium is stored in kerosene as it is a highly reactive metal. If it is kept in open air, it easily reacts with the oxygen and catches fire.