Name______Quiz 1 Summary

Periodic Table of Elements

What are Groups and what does the group number tell us about the elementon the Periodic Table?

The group is the vertical columns and indicates the number of valance electrons.

What are Periods and what does the period number tell us about the element on the Periodic Table?

Periods are the horizontal rows and indicate the number of energy levels.

What is unique about the Noble Gases, group 18?

They have full outer energy levels and do not bond with other elements.

What are the 3 subatomic particles, the charge, and location?

Particle

/ Charge / Location
Proton / + / Nucleus
Neutron / No Charge / Nucleus
Electron / - / Outside the Nucleus

Determine the number of each for the following elements?

C4- K1+ Al3+ S2- B3+

Protons / 6 / 19 / 13 / 16 / 5
Neutrons / 6 / 20 / 14 / 16 / 6
Electrons / 10 / 18 / 10 / 18 / 2
Valence Electrons / 8 / 8 / 8 / 8 / 2

How many electrons (maximum) does the 1st energy level hold:2 2nd energy level: 8

3rd energy level:18

What is a valence electron?Number of electrons on the outer most energy level.

How many valence electrons do elements in the following groups have?

Group ## ofValence electronsGroup ## ofValence electrons

11 155

22 133 18 8

Define Ion:An atom with a positive or negative charge

Define Isotope:a variation of an element with the same number of protons but different number of neutrons

Define Atomic Mass:Protons plus neutrons

Define Average Atomic Mass:the average number protons plus neutrons for a specific element with respect to how much of that substance there is on Earth

How can we determine if an element will bond with another element?The number of valence electrons. A full outer energy field will not bond with another atom.

What is the octet rule say about the number of valance electrons?

Energy levels are “full” or “stable” with sets of 8 electrons with the exception of the first energy level with 2 electrons.

Explain how the Periodic Table helps you determine what type of ion an atom will form.

The left of the periodic table is where you will find positive ions and

The right side of the periodic table is where you will find negative ions

Construct a model of the following atomsand a model of the ion that each atom will form. Include the symbol and charge of the ion:

Type of Atom / Model of Atom / Model of Ion, Symbol, and Charge

Beryllium

/ E=4 Be




Charge = 0 / E=2 Be2+
Charge = 2+
Oxygen / E= 8 O






Charge= 0 / E=10 O2-

Charge = 2-
Magnesium / E=12 Mg


Charge = 0 / E=10 Mg2+


Charge = 2+
Chlorine / E=17 Cl




Charge = 0 / E=18 Cl1-




Charge = 1-
Lithium / E=3 Li



Charge = 0 / E=2 Li1+



Charge = 1+
Carbon
Negative Ion* / E= 6 C





Charge= 0 / E= 10 C4-






Charge= 4-
Carbon
Positive Ion* / E= 6 C





Charge= 0 / E= 2 C4+




Charge= 4+

*Note: Carbon typically does not form ions.