Periodic Table History and arrangement
Who is the father of the Periodic Table?
Dmitri Mendeleev
What group is the Boron family?
Group 13
The three classes of elements are these.
What are metals, nonmetals and nonmetals?
Arsenic (As) has 42.
What are neutrons?
Group 13, Period 4
What is Gallium?
Al
Aluminum
Carbon
What is C?
The person whose work led to a periodic table based on increasing atomic number was......
Who was Moseley
This group and type of metal on the periodic table includes magnesium, calcium, and barium?
What is alkaline earth metals
The very reactive elements in group 1 are known as this.
What are alkali metals?
The Atomic Mass minus the Atomic Number =
The number of neutrons of an atom?
Group 16, Period 2
What is Oxygen?
Ni
What is Nickel?
Gallium.
What ia Ga ?
Elements are put into rows by increasing _____
Atomic Number
The vertical columns on the periodic table.
What are groups / families?
The name of the group in the periodic table that includes magnesium, calcium, and barium is called?
What is alkaline earth metals
Number of periods on the periodic table.
What is 7?
Group 17, period 4
What is Bromine?
As
What is Arsenic ?
Iron
What is Fe?
What are the vertical columns called and how are they numbered?
Groups (1-18)
The nonreactive elements in group 18 are known as this.
What are the noble gases?
The number of protons in an atom of calcium.
What is 20?
This noble gas lacks an octet
What is helium?
Ts
What is Tennessine?
Lead
What is Pb?
Why are certain elements in the group have similar physical and chemical properties?
They have the same number of valence electrons
Elements in a group or column in the periodic table can be expected to have similar...... a) atomic masses b) atomic numbers c) numbers of neutrons d) properties
Whate are properties
This class of elements are good conductors of heat and electric current.
What are metals?
The number of neutrons in an atom of neon if its atomic mass number is 21
What is 11?
This element has 47 protons, 61 Neutrons and 47 Electrons
What is Silver (Ag)?
Np
What is Neptunium
Terbium
What is Tb?
The principle that states that the physical and chemical properties of the elements are periodic functions of their atomic numbers is.... a)the periodic table b)the periodic law c)the law of properties d)Mendeleev's law
What is the periodic law
The electrons in the outer energy level
What are valence electrons?
Silicon, Boron, and Tellurium
What are metalloids?
Elements 1A - 8A are called
What are representative elements?
These metals contain familiar metals such as gold, iron, and copper
Transition metals
Gd
Gadolomium
Technetium
What isTc?
Cm
What is Curium?
Actinium
Ac
Group /Family members that have Tellurium in them are known as this strange sound word.
What are Chalcogens?