Honors Chemistry Chapter 1
WHY do the elements in the same column of the periodic table share similar chemical and physical properties?
Same coloums of the periodic table have the same amount of valence electeons while the rows have the same amount of electronic rings
Know the names given to groups 1, 2, 17, and 18.
Group 1 is Alkaline earth metals
Group 2 is Alkaline metals
Group 17 is Halogens
Goupp 18 is Noble Gasses
State the observed trends in atomic size and ionization energy.
As one trend gets bigger the other becomes smaller and vise virsa
a. WHY does atomic size behave as observed?
As atomic size gets bigger ionazation gets smaller due to the smaller atoms having closer electronic rings making the electronic pull greater than other bigger atoms.
What is the relationship between atomic size and ionization energy?
If one incrreases the others decrese
Be able to arrange atoms in order of INCREASING: (Example to try: Cs, Ar, K, Kr, Co, Mo, and Ca)
a) size b) ionization energy/nuclear effective charge
A) from smallest to largest Ar K Ca Co Kr Mo CS
B) ionization energy from smallest to largest Cs, Mo, K, Ca, Co, Kr, Ar
4) dentify the charges for the ions that form of any element in family/groups with the exception of the transition and lanthanides/actinides.
For each of the ions formed in part "a", state how many electrons were gained or lost by the neutral atom.
Gallium (Ga) loses electrons to form a positive ion. Use the periodic table to predict the charge for a Ga ion (it is NOT +13). Use the periodic law to justify your answer.
Where on the periodic table are the metals, nonmetals, and metalloids located
Give the stable ions for all the elements in period 3.
Explain Coulomb's law
Be able to ID which element would have a greater/lesser shielding effect
Know how to determine if a sample is a metal or non-metal.
Be able to write an electron configuration of an element
Be able to identify an element based on the electron configuration