Periodic Design
Properties
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Vocab
100

Elements with similar properties are organized together in vertical columns referred to as this.

What are groups?

100

This group on the periodic table is most notable for being largely unreactive.

What are the Noble Gases?

100

This is the element with the largest radius.

What is Francium?

100

Lower ionization energy

Si or Sn?

What is Sn?

100

The energy required to remove a highest energy electron.

What is ionization energy?

200

The way Mendeleev organized his periodic table

What is "by increasing atomic mass"?

200

The elements in this group on the periodic table have two valence electrons (give group name).

What are the Alkaline Earth Metals?

200

This element has the highest electronegativity.

What is fluorine?

200

Larger atomic radius?

K or B

What is K?

200

Core electrons protect the valence electrons from the full attractive forces of the protons.

What is shielding?
300

This man discovered the periodic table is better organized by organizing elements in order of atomic number.

Who is Moseley?

300

Elements that are brittle, nonconductive, and dull.

What are nonmetals?

300

This trend increases down the group and decreases across the period.

What is atomic radius?

300

Lower electronegativity?

Mg or P

What is Mg?

300

Electronegativity.

What is the ability of an atom in a bond to attract electrons to itself?

400

What the empty spaces in Mendeleev's table represented.

What are undiscovered elements?

400
Elements in these two groups are not found as pure samples in nature.
What are the alkali metals (group 1) and alkaline earth metals (group 2)?
400

Noble gases do not have values for this and are therefore excluded when examining the trend.

What is electronegativity?

400

Larger?

Rb+1 or As-3

What is As-3?

400

The s and p electrons in the highest occupied energy level of an atom.

What are valence electrons?

500

This feature separates the metals and nonmetals on the periodic table.

What is the staircase line?

500

An element with a configuration ending in ns2p5 is a part of which group on the periodic table?

What are the halogens?

500

This type of series features ions that have the same number of electrons, but different numbers of protons.

What is an isoelectronic series?

500

The correct order for increasing ionization energy

S, Cs, F, Fe, K

What is...Cs<K<Fe<S<F ?

500

Effective nuclear charge.

The net positive charge from the nucleus that can be felt by the valence electrons.