How many electron shells does RB have?
How many electron shells does RB have?
Data Zone
| Classification: | Rubidium is an alkali metal |
|---|---|
| Electrons: | 37 |
| Protons: | 37 |
| Neutrons in most abundant isotope: | 48 |
| Electron shells: | 2,8,18,8,1 |
Is CA an alkali metal?
Caesium, the fifth alkali metal, is the most reactive of all the metals. All the alkali metals react with water, with the heavier alkali metals reacting more vigorously than the lighter ones….Alkali metal.
| Hydrogen | Potassium |
|---|---|
| Calcium | |
| Scandium | |
| Titanium | |
| Vanadium |
Why is rubidium more reactive than potassium?
Answer: Potassium (K) is more reactive because it is further down in Group 1 than sodium (Na). Answer: Rubidium (Rb) is more reactive because it is further to the left than strontium (Sr).
Why is potassium more reactive than lithium GCSE?
Potassium is more reactive than lithium, since although they both need to lose one electron to have full outer shells, potassium’s outer electron is furthest from the positive attractions of the nucleus. Therefore, it is easier for potassium to lose its outer electron than it is for lithium.
Which is more reactive with water sodium or potassium?
In this dramatic demonstration, lithium, sodium, and potassium react with water to produce hydrogen gas and the hydroxides of the metals. Lithium reacts fairly slowly, fizzing….Alkali Metal Reactivity.
| Element | First Ionization Energy (kJ/mol) |
|---|---|
| Li | 520 |
| Na | 496 |
| K | 419 |
Is potassium more reactive than rubidium?
Rubidium is a typical but very reactive member of the series of alkali metals. It is appreciably more reactive than potassium, but less so than caesium, and so would be expected to react more violently with those materials that are hazardous with potassium or sodium.
How do you know that potassium is highly reactive?
Potassium is in the most reactive group of elements, the alkali metals, but it’s not the most reactive metal within the group. The alkali metals, Group 1A, are the most reactive metals because they have one valence or outer electron. They lose this electron very easily, forming ions with a charge of +1.
Why is beryllium less reactive than lithium?
Lithium is alkali metal with valency 1 and it is group 1 element due to which it can easily release its electron to form the stable cation while the beryllium is group 2 element or alkaline earth metal with a valency 2 so as it needs to lose two electrons to form the stable cation and hence it will require more energy …