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Atomic Radius
Electronegativity
First Ionization Energy
History
Properties
100
Barium has the larger atomic radius.
Which one has the larger atomic radius Calcium or Barium?
100
Electronegativity increases left to right in a period.
Which way does Electronegativity increase in a period?
100
Ionization increases from left to right in a period.
Which way does the ionization energy of elements increase in a period?
100
Alkali metals are located in the first group of the periodic table.
Where on the periodic table are alkali metals located?
100
The properties of alkali metals is that their density is lower than those of other metals.
What are the properties of alkali metals?
200
It goes from top to bottom.
Which way does the atomic radius increase in a group?
200
Ionization energy decreases from top to bottom in a group.
Which way does ionization energy decrease in a group?
200
Alkaline metals are located in the second group of the periodic table.
Where are alkaline metals located in the periodic table?
200
Earth metals have one electron in their outer shell.
What properties do earth metals have?
300
It decreases from left to right.
Which way does the atomic radius decrease within a period?
300
Electronegativity measures an atom's tendency to attract and form bonds with electrons.
What does Electronegativity measure?
300
They posses a high amount because of their full valence shells.
Why do noble gases possess a very high ionization energy?
300
Halogens are located in the seventeenth group in the periodic table.
Where are halogen located in the periodic table?
300
Alkali metals have a high reactivity because they have largest atomic radii of the elements in their periods.
How reactive are alkali metals?
400
The distance between the nuclei of two atoms.
What is atomic radius?
400
Electronegativity is a qualitative property.
Is Electronegativity a qualitative or quantitative property?
400
Electron shielding shields its positively charged nucleus from its valence electrons.
What does electron shielding do to ionization energy?
400
Noble gases are located in the group farthest right of the periodic table.
Where are noble gases located in the periodic table?
400
Alkali metals have a low Electronegativity because they are highly reactive with nonmetals, particularly halogen.
Why do alkali metals have low Electronegativities?
500
Electron fielding Prevents outer electrons from being attracted to the nucleus.
What does electron fielding prevent?
500
Electronegativity decreases In a group top to bottom because the atomic number increases down a group.
Why does the Electronegativity decrease in a group from top to bottom?
500
Ionization energy is the energy required to remove an electron from a neutral atom in its gaseous phase.
What is ionization energy?
500
Dmitri Mendeleev made the theory of the periodic trends and the periodic table.
Who made the theory of the periodic trends
500
Alkali metals are lithium, sodium, potassium, rubidium, cesium, and francium.
What are the alkali metals names?