Which is the correct reactivity series?

Which is the correct reactivity series?

In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom....The reactivity series.
ElementReaction with water
SodiumVery quickly
CalciumMore slowly

How do you remember the reactivity series in order?

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Which is more reactive sodium or calcium?

Sodium is more reactive than Calcium. Sodium displaces calcium from an ionic compound and hence it is more reactive. Calcium cannot displace sodium from its compound because it is less reactive. The most reactive metal is Potassium and the least reactive metal is platinum.

Is calcium a reactive metal than sodium?

Solution. Calcium is a less reactive metal than sodium.

Is sodium a very reactive metal?

Sodium is a soft, silvery metal that reacts very vigorously with water, and tarnishes easily in air. It is the fourth most abundant element in the Earth's crust, which consists of 2.

Why is sodium metal so reactive?

Sodium on the opposite side of the table has the opposite properties. Its single outer electron makes the metal highly reactive and ready to combine with others at the first opportunity – such as the moment the metal hits water.

How do you test the reactivity of metals?

The reactivity of six metals are qualitatively tested by adding water and the indicator phenolphthalein. If the metal reacts with water it will replace the Hydrogen from water and make Hydrogen gas (bubbles) and the metal hydroxide.

What is sodium reactive to?

Sodium is ordinarily quite reactive with air, and the reactivity is a function of the relative humidity, or water-vapour content of the air. ... In ordinary air, sodium metal reacts to form a sodium hydroxide film, which can rapidly absorb carbon dioxide from the air, forming sodium bicarbonate.

Is Potassium a reactive metal?

Potassium is in the most reactive group of elements, the alkali metals, but it's not the most reactive metal within the group. ... This makes Francium the most reactive, followed by cesium, rubidium, potassium, sodium and lithium.

Is sulfur highly reactive?

Sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. ... It reacts with all metals except gold and platinum, forming sulfides; it also forms compounds with several nonmetallic elements.

Is sodium or neon more reactive?

First, a little explanation of electron shells : ... Valence electrons are electrons in the outer shell of the atom. For example Sodium has 1 valence electron, Neon has 8 valence electrons, and Chlorine has 7 valence electrons. The number of valence electrons an atom has determines its reactivity.

Why is Cl so reactive?

The arrangement of an atom's electrons in "orbits" around its nucleus determines how reactive the element is because it is the electrons of atoms that interact, shuffling about, when chemical reactions occur. ... Because it is so "anxious" to pull another electron into its orbit, chlorine is an extremely reactive element.

Why is neon the least reactive element?

Neon is the tenth element of the periodic table and the second of the noble gases. The element is incredibly non-reactive because of its electron configuration. It has a "happy" electron orbital that is filled with eight electrons.

What causes metals to be reactive?

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. ... Alkali metals are highly reactive because they readily lose the single electron in their outermost shell.

What is an example of reactivity?

Reactivity is the ability of matter to combine chemically with other substances. For example, iron is highly reactive with oxygen. When it combines with oxygen, it forms the reddish powder called rust (see Figure below). Rust is not iron but an entirely different substance that consists of both iron and oxygen.

What makes a metal more reactive than another?

Reactivity Series Metal ions are positively charged as they lose negative electrons. Some metals give up their electrons more readily than others and are, therefore, more reactive. ... Metals readily react with water and dilute acids, during these reactions hydrogen gas is given off.

Is Ag or Cu more reactive?

1 Answer. The reactivity series of metals compares the reactivity of metals. ... As you can see, copper is above silver in the reactivity series, meaning it is more reactive than silver, and will replace the silver in the silver nitrate compound. Let's if the opposite reaction can take place.

Why does Cu not react with HCl?

Copper is a less reactive metal, hence does not react with any acid. ... But Cu does not react with HCl because the reduction potential of Cu is higher than that of hydrogen. Only metals which have their reduction potential less than that of hydrogen react with non – oxidising acids.

Is gold a reactive metal?

Gold is one of the least reactive elements on the Periodic Table. It doesn't react with oxygen, so it never rusts or corrodes. Gold is unaffected by air, water, alkalis and all acids except aqua regia (a mixture of hydrochloric acid and nitric acid) which can dissolve gold. ... Gold does react with halogens.

Why is gold the least reactive metal?

Relativistic effects account for gold's lack of reactivity. Gold has a heavy enough nucleus that its electrons must travel at speeds nearing the speed of light to prevent them from falling into the nucleus. ... This is why gold is relatively unreactive.