Question

Hydrogen has one proton and one electron. It is in column 1 on the periodic table. How many valence electrons does hydrogen have? 0 1 2 3

Answer 1

Hydrogen has 1 valence electron.

Elements in group 1A, like Hydrogen, typically have 1 valence electron.

Answer 2

Answer:

Hydrogen has 1 valence electrons.

Explanation:

Valencia electrons are the electrons found in the last electronic layer (called valence orbitals).  This electrons allows to determine their location in the Periodic Table. All elements of the same group have the same number of valence electrons in their last or last layers. The valence electrons increase in number as one advances in a period. Then, at the beginning of the new period, the number decreases to one and begins to increase again.

Then the group number indicates the electronic configuration of their last layer, varying only the period of the element.

Hydrogen is in column 1 of the periodic table. Then the hydrogen belongs to group 1. This means that this element has 1 valence electron.