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Name the element
Classes of elements
Definitions
Periodic Table Structure
Elemental Families
100
This element with an atomic mass of 145.
What is promethium?
100
This element belongs to the non-metals family and has an atomic mass of 32.
What is sulfur?
100
Number of protons + number of neutrons
What is atomic mass?
100
The zigzag line/staircase on the periodic table.
What is the border?
100
Will have 4 valence electrons but give them easily.
What is the carbon group.
200
This element is 51 on the Periodic Table.
What is antimony?
200
This element has a mass of 223 and is identifiable as a metal.
What is the Francium?
200
Number of protons and number of electrons.
What is atomic number?
200
Found on the left of the zigzag line/staircase on the periodic table (except for Hydrogen).
What is the metals family?
200
Have 7 valence electrons and are highly reactive.
What are Halogens?
300
This element's symbol is Am.
What is Americium?
300
This element has 13 protons and is identifiable as a metal.
What is aluminum?
300
A table of elements, arranged by atomic number, that shows the patterns in their properties; based on the periodic law.
What is the Periodic Table of Elements?
300
Found on the right of the zigzag line/staircase on the periodic table.
What is the non-metals family?
300
Located in groups 3-12, and not very reactive due to high number of valence electrons.
What is a transition metal?
400
This element has 20 protons.
What is calcium?
400
This element is the only exception of the non-metals to not be on the right side of the periodic table.
What is hydrogen?
400
Physical and chemical properties of the elements are periodic functions of their atomic numbers.
What is the Periodic Law?
400
The number of periods on the periodic table (numbered from the top down).
What is seven?
400
Has 2 valence electrons, located in group 2 on the periodic table, and is much less reactive than Alkali metals.
What is an Alkaline Earth Metal?
500
This element has 42 neutrons.
What is arsenic?
500
This class of elements tends to have few electrons in their outer energy levels.
What is the metals family?
500
Have 2 valena electrons, so it has an overall charge of 2+ when it gives up its outer 2 electrons.
What is an Alkaline Earth Metal?
500
Number of groups on the periodic table (numbered from left to right).
What is eighteen?
500
Has 6 valence electrons that it will not give up.
What is the oxygen family?