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?
Determine which of the following elements have the least to greatest electronegativity: Cl, Mg,Ca,N, and O
Ca,Mg,N,Cl and O
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 ?
Which element has higher ionization energy? Carbon or aluminum
What is carbon?
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
The electrons in the outer most shell are known as?
valence electrons?
Group 17, period 4
What is Bromine?
As
What is Arsenic ?
Iron
What is Fe?
Which element has higher ionization energy? Sulfur or Chlorine
Chlorine
What are the horizontal rows called and how are they numbered?
Periods (1-7)
The elements in group 17 are known as this.
What are the Halogens?
Argon, Kryton, and xenon are......
What are noble or inert gases?
The atomic number is equal to this on a neutral atom
What is the number of protons and electrons?
Atomic number 9
What is fluorine?
Kr
What is Krypton?
Cadmium
What is Cd?
How does atomic radius change across a period and down a group?
What is it increases in size as you move cross a period (from right to left) and it it increases in size as you move down a group?
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?
Number of periods on the periodic table.
What is 7?
This noble gas lacks an octet
What is helium?
Ts
What is Tennessine?
Lead
What is Pb?
Actinides
What are radioactive elements?
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 protons in an atom of calcium.
What is 20?
A new element is found with an atomic number of 119. Where would you place it on the periodic table and what would it be called?
It should be in period 8 and group 1. So it should act like an alkali metal (be explosive in water and VERY reactive).
Np
What is Neptunium
Terbium
What is Tb?
What is the name of the family for elements #57-71?
Lanthanides
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?
The number of neutrons in an atom of neon with a mass number of 21
What is 11?
This element has 47 protons, 61 Neutrons and 47 Electrons
What is Silver (Ag)?
Gd
Gadolomium
Technetium
What isTc?
As you move down Group 14 in the periodic table from carbon through lead, atomic radii......
What is increases?
These metals contain familiar metals such as gold, iron, and copper
Transition metals
Elements 1A - 8A are called
What are representative elements?
Element with 29 protons and 29 electrons.
What is Copper (Cu)?
Cm
What is Curium?
Actinium
Ac
Where is the smallest element located on the periodic table? Hint: think atomic radius.
What is at the top right corner of the periodic table.