Representa gráficamente con una breve descripción de los modelos de Bohr correspondientes a los siguientes elementos representativos: Nitrógeno, Sodio, Calcio, Bromo, Neón

Here's what I get  

Explanation:

1. Nitrogen

A nitrogen atom has a central positively-charged nucleus surrounded by seven electrons. Two are in the first energy level and the other five are in the second.

2. Sodium

In a sodium atom 11 electrons surround the nucleus in three energy levels in a 2-8-1 order.

3. Calcium

In a calcium atom 20 electrons surround the nucleus. The electron shell configuration  is 2-8-8-2.  

4. Bromine

The Bohr model of a bromine atom would show 35 electrons surround the nucleus in a  is 2-8-8-17 shell configuration.  

More modern variations use principal quantum numbers and a 2-8-18-7 arrangement.

5. Neon

A neon atom has 10 electrons surrounding the nucleus in a 2-8 shell configuration.  

a polar bond is formed when electrons are shared unevenly between atoms