Periodic Table Facts
Metals, Nonmetals, and Metalloids
Periodic Trends, Part One
Periodic Trends, Part Two
Happy Atoms
Valence Electrons
100

the group 1A elements are known as

alkali metals

100

the group 7A elements

halogens

100

the amount of energy required to remove an electron from an atom

What is ionization energy

100

the ability of an atom to attract an electron to itself (How desperate an atom is for electrons)

What is electronegativity?

100

What group of elements do all the other elements want to be like? (Give the name AND the group number)

Noble gases, group 18/8A

100

The rule that states that every atom wants 8 valence electrons in order to be happy/stable

The octet rule

200

the group of elements that are inert/stable (highly unreactive)

Noble gases (Group 18/8A)

200
name the element that is in Period 3 , Group 5A
What is phosphorus
200

as you move across a period atomic size tends to ____ and as you move down a group atomic size tends to ______.

What is decrease and increase.

200
compared to the neutral atom (the parent) an anion has a _________ atomic radius (bigger or smaller)
What is bigger
200
the most electronegative element
What is fluorine
200
the number of valence electrons that Nitrogen has
What is 5.
300

What are the elements called that are in Groups 1, 2, 13, 14, 15, 16, 17, and 18?

representative elements

300

What group of metals on the periodic table is most reactive due to having only ONE extra valence electron?

Alkali metals

300

Which of the following atoms have the smallest ionization energy?

Rb, Ti, Co

Rb - farthest away from F

300
Electronegativity tends to _____ as you move across a period and ____ as you move down a group.
What is increase and decrease
300
a positive ion is known as a ____ while a negative ion is known as ___.
What is cation and anion
300

What group of nonmetals on the periodic table is most reactive due to needing only ONE extra valence electron?

Halogens

400

Elements on the periodic table are arranged by increasing

atomic number

400

the specific name of the metals in the F block (2 names)

lanthanides and actinides (inner transition metals)

400

Which atom from this list has the largest electronegativity?

Na, Ag, Te, Se

Se - closest to F

400
Place the following atoms in order of smallest ionization energy to greatest ionization energy: Mg, Ba, Sr
What is Ba, Sr, Mg
400

What type of element is shiny like metals but brittle like nonmetals?

metalloids/semimetals

400

How many valence electrons does bromine have?

7

500

How do I find how many neutrons an atom has?

Mass number - atomic number

500

Name the 8 metalloids.

Boron, silicon, germanium, arsenic, antimony, tellurium, astatine, polonium

500

place the following in order of smallest to largest: Ca, Ca +2, Mg +2

What is Mg+2, Ca +2, Ca

500

Which atom is the largest in this group?

Ca, Ga, Cl

Ca - closest to Cs

500
what are the trends for ionization energy, atomic size, and electronegativity
What is ionization energy- increase across a period, decrease down a group; electronegativity- increase across a period, decrease down a group, atomic size- decrease across a period, increase down a group
500

How many electrons do noble gases lose?

NONE! They are stable with 8 valence electrons so they won't gain or lose any!

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