+1 (Apex 2021)
The atomic number of rubidium is 37. That means it has 37 protons and 37 electrons. After we fill in the first 37 orbitals with electrons, we get the configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1. Since 5 is the highest numbered shell, rubidium has 1 valence electron.
Atomic number is the number of protons in the nucleus of an atom. Therefore, sodium's atomic number is always 11, even if it loses 1 electron. However, when a sodium atom loses 1 electron, it will form an ion with a 1+ charge.
The atomic number of helium (He) is 2. When He gains one electron to become He plus, it becomes an ion with a net charge of +1, but the atomic number remains the same as 2.
Your question is not right, since an atom has no charge, and charge anyway does not effect the number of protons. Anyway, you already have the answer since the atomic number IS the number of protons. Or else if you do not have the atomic number, you can get it using mass - number of neutrons.
forgive me if i do not remember exactly but i believe a Rubidium atom contains 19 electrons 20 neutrons and 19 protons
When Rubidium (Rb) has an atomic number of 37, it has one electron in its outermost shell. By losing this single electron, Rubidium forms a cation with a charge of +1. Therefore, the charge of the Rubidium ion would be +1, commonly represented as Rb⁺.
The atomic number of rubidium is 37.
Francium is radioactive and rubidium not. Also the electron configuration, atomic number, physical properties, hazards etc. are different.
Rubidium is a metal element. Atomic mass of it is 85.46.
The atomic number of rubidium (Rb) is 37.The atomic weight of Rb is 85.4678(3) grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Rubidium has an atomic number of 37, making it an alkali metal. This means that its last shell is an s with only one electron. The full notation is [Kr] 5s1.
Rubidium is an element (atomic number 37).
Rubidium is an element (atomic number 37).
Rubidium is an element (atomic number 37).
Rubidium has an atomic number of 37, making it an alkali metal. This means that its last shell is an s with only one electron. The full notation is [Kr] 5s1.
The atomic radius depends on the the number of electron shells, total negative charge, positive charge of the nucleus, atomic mass.
Atomic number is the number of protons in the nucleus of an atom. Therefore, sodium's atomic number is always 11, even if it loses 1 electron. However, when a sodium atom loses 1 electron, it will form an ion with a 1+ charge.