1. All matter is made up of atoms

2. Atoms have two parts

3. Nucleus Electron cloud
Atomic structure
Nucleus Electron cloud

4. The nucleus is made up of two atomic sub particles.

5. The nucleus is made up of two atomic sub particles.+ +
Nucleus + +
a positively (+)
charged
Proton

6. The nucleus is made up of two atomic sub particles.+ + +
Nucleus +
a positively (+) a particle with NO
charged charge (0) called a
Proton Neutron.

7. The electron cloud is made up of one atomic sub particle.

8. The electron cloud is made up of one atomic sub particle.
a negatively (-) charged Electron - - + + - + + -

9. This is a Bohr model of the Beryllium atom.- - + + - + + -

10. This atom has a charge that is in equilibrium
This atom has a charge that is in equilibrium. 4 positive charges balance out the 4 negatively charged electrons. The neutrons carry NO charge and therefor have no effect on the charge of the atom. - - + + - + + -

11. Atoms lose their protons or neutrons but it is extremely difficult and time consuming. They can lose their electrons very easily. - - + + - + + -

12. If this Beryllium atom losses an electron it would become positively charged.- + - + + + -
Because there are more positively charged
protons than negative charges.

13. If this Beryllium atom loses an electron it would become positively charged.
It is no longer
called an atom.
It is called an
ion. - + - + + +
Specifically
a cation. -
Because there are more positively charged
protons than negative charges.

14. - - - - - + + + + Specifically an anion.
If this Beryllium atom gains an electron it would become negatively charged. -
It is no longer
called an atom.
It is called an
ion. - + - - + + +
Specifically an anion. -
Because there are more negatively charged
protons than positively charged protons.

15. Using the periodic table to create a Bohr Model of an atom.
The periods (rows)
Indicate the number of
Orbitals (energy shells or
electron shells)
that make up the
electron
cloud.

16. Using the periodic table to create a Bohr Model of an atom.
Columns (called groups or families) indicate the number of electrons
that can be found in the outermost energy shell
called the valence
Shell.

17. How many energy shells does Potassium (K) have?.

18. How many valence electrons (electrons in the outer shell) does Potassium (K) have?.

19. Each square of the periodic table gives particular information about the atoms of an element. Txt. P. 19
The atomic number tells you
How many protons and
Electrons the element has.
The Chemical symbol of
The element.
The atomic mass made
up of protons and
Neutrons.
Subtracting the atomic number from the mass, will give us the number of neutrons in the element

20. Electron configuration rules 1
Electron configuration rules 1. The innermost shell, due to its radius, can only hold 2 electrons. 2. The next shell can hold 8 electrons. 3. The third shell can hold up to 18 electrons. 4. The 4th shell can hold up to 32 electrons.

21. With these rules in mind create a Bohr model of Al.

22. Al is in the 3rd period and 13th group
Al is in the 3rd period and 13th group. As a result, we know that AL has __
electron shells and___electrons in its valence shell. Its atomic number is_____
and so has___protons and___ electrons.
Its atomic mass is___ and so it has _____
neutrons.

24. 3rd period= 3 energy shells- - -
13th family= 3 valence electrons

25. Rule 1: there are 2 electrons
In the inner shell. - - - - -

26. - - - - - Atomic number is 13. So it Has 13 electrons all together.
So how many electrons will there be in
the shell that we haven’t filled yet?

27. - - - - - - - - - - - - -

28. - - - - - -
13P
14N - - - - - - -
13P
13.982N