The half-life isn't specified for an element, but for an isotope. Check the Wikipedia article titled "Isotopes of rubidium" for more details.Rubidium-87 occurs naturally; it has a half-life of 4.92×1010 years.
i think they are related
it related
They are not related!
They are not related by blood; they become husband and wife.
thay weren't related
They are the elements in the first column of the periodic table: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).See the Related Questions to the left for more information about the alkali metals and their properties.
By relatives, I am assuming that you mean elements in the same family. The metals that are related to sodium are lithium, potassium, rubidium, caesium and francium
Have a look at the wikipedia article about Rubidium it will answer your question. Click on related links below.
No, it is not a conjunction. It is a noun related to the verb to add.
No, "glorious" is not a conjunction. It is an adjective used to describe something that is magnificent, impressive, or beautiful.Conjunctions are words used to connect words, phrases, clauses, or sentences.
No, "thoughtfully" is an adverb, not a conjunction. It is used to describe how something is done or the manner in which an action is carried out.
All the elements in the first column of the periodic table have 1 valence electron.They include: lithium (Li), sodium (Na), postassium (K), rubidium (Rb),cesium (Cs), and Francium (Fr).See the Related Questions for more information.
No, the word I (first person pronoun) cannot be a conjunction. A conjunction connects related words, phrases, and clauses.
No, it is not a conjunction. The word work is a noun with several related meanings, or a verb.
No, "wonder" is not a conjunction. It is typically used as a noun or verb to denote curiosity, amazement, or awe.
85.4678 g/mol, please see related link
A correlative conjunction