Vocabulary
Trends
Trends
Challenge
Heavy
100
A horizontal row of elements in the periodic table
What is a period?
100
The modern periodic table is arranged in order of
What is increasing atomic number?
100

Which element has the greater atomic radius

C or Si?

What is Si?

100
Atoms or groups of atoms that have an electrical charge due to a different number of protons and electrons
What is an ion?
100

the number of electrons in the outermost energy level is called

What are valence electrons?

200
The amount of energy needed to remove an electron from a neutral atom
What is ionization energy?
200
As you move down a group of the periodic table, atomic size generally
What is increasing?
200

Which element has the smaller ionic radius?

Ca+2 or P-3

What is Ca+2?

200
The subatomic particle that plays the greatest role in determining the physical properties of an element is
What is the electron?
200

Group 18 elements have these numbers of valence electrons (except He)

What is 8?

300
The ability of an element to attract electrons when forming a chemical bond
What is electronegativity?
300
The atom with the highest electronegativity on the Periodic Table is
What is flourine?
300

This element is the smallest element on the periodic table.

What is He?

300
The vertical columns of the periodic table are called
What is groups?
300

This person put the periodic table together by increasing #s of protons.

What is Mosely?

400
The radius of a positive or negative ion
What is ionic radius
400
Which ion has the greater ionization energy: Lithium or Boron
What is Boron?
400

Arrange these elements in order of decreasing ionization energy ?

Ge, P, Cl,Ne, O

What is ?

Ne, O, Cl, P, Ge

400

Any member of the nonmetallic elements in Group 17 of the periodic table that are extremely reactive is named

What is halogens?

400

None of these elements were on the original periodic table in 1869.

What are Noble Gases, Lanthanides, Actinides

500
The radius of a neutral atom; one half the distance between two like atoms in a molecule
What is atomic radius?
500
Describe the trend of atomic radius down a group and across a period?
What is the atomic radii increases down a group and decreases across a period?
500

Arrange these elements in order of increasing ionic radius:

F-1, Mg +2, Al+3, N-3

What is ?

Al+3, Mg+2, F-1, N-3

500

Any member of a group of gaseous elements in Group 18 of the periodic table that are inert and unreactive are called

What is Noble gases?

500

Regions around the nucleus of an atom where electrons may be found are called

What is energy levels?

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