Question

match the correct atomic model to the correct scientists and description
atomic models
a. quantum model: schrodinger, electrons are found in the electron cloud and the exact location of the electron cannot be determined. this is the most correct model.
b. nuclear model: rutherford, conducted the gold foil experiment and determined the atom has a dense nucleus in the center.
c. chocolate chip cookie model: thomson, experimented with the cathode - ray tubes and discovered the electron.
d. solid sphere: dalton, everything is made of atoms and atoms cannot be destroyed.
e. bohr model: bohr, electrons travel in orbits around the nucleus.
bohr models

1. draw bohr models for the following elements

a. li
b. f
c. mg

Explanation:

Step1: Recall atomic number of Li

Lithium (Li) has an atomic number of 3. So, it has 3 protons and 3 electrons in a neutral atom. The first shell can hold 2 electrons and the second shell will hold the remaining 1 electron.

Step2: Recall atomic number of F

Fluorine (F) has an atomic number of 9. It has 9 protons and 9 electrons in a neutral atom. The first shell holds 2 electrons and the second shell holds 7 electrons.

Step3: Recall atomic number of Mg

Magnesium (Mg) has an atomic number of 12. It has 12 protons and 12 electrons in a neutral atom. The first shell holds 2 electrons, the second shell holds 8 electrons and the third shell holds 2 electrons.

Answer:

1. a. For Li: Draw a small circle in the center to represent the nucleus with 3 protons and 4 neutrons (neutrons are optional to show in a basic Bohr - model). Then draw two concentric circles around the nucleus. Put 2 electrons on the inner - most circle and 1 electron on the second circle.

b. For F: Draw a small circle in the center to represent the nucleus with 9 protons and 10 neutrons (neutrons are optional). Then draw two concentric circles around the nucleus. Put 2 electrons on the first circle and 7 electrons on the second circle.
c. For Mg: Draw a small circle in the center to represent the nucleus with 12 protons and 12 neutrons (neutrons are optional). Then draw three concentric circles around the nucleus. Put 2 electrons on the first circle, 8 electrons on the second circle and 2 electrons on the third circle.