Elements
Elements that come from foreign languages
W, Fe, Au, Ag, Pb, Sn, K
Given credit for the Periodic Table (1870)
Dmitri Mendeleev
What are the three main regions of the periodic table
metals, nonmetals, and metalloids
How are the elements listed on the periodic table
by the order of their atomic number
What is the shielding effect, and how does it affect the effective nuclear charge?
describes how inner electrons reduce the full nuclear charge experienced by outer electrons. This means the outer electrons feel an effective nuclear charge that is less than the full nuclear charge.
Elements that were known to the ancients
Au, Ag, S, Sn, C
Put elements in order of increasing atomic number
Henry Mosley
Where are metals located on the periodic tablele
on the left
What are two main types of trends on thee periodic table?
Period trends and group trends
Why does the shielding effect increase as you move down a group?
Shielding increases as you move down a group because the inner electrons are further away from the nucleus. This increases their ability to repel the outer electrons, leading to more shielding
Elements that came from famous people
Es, Fm, Md, No, Gd, Rf, Bh
Russian Chemist who created the frame work that became the modern Periodic Table
Dmitri Mendeleev
Where are nonmetals located on the periodic table
on the right
What is the periodic table??
a chart that organizes chemical elements based on their atomic number, electron configuration, and recurring chemical properties
Which types of orbitals are generally better at shielding?
s and p orbitals are generally better at shielding than d and f orbitals
Elements that came from mythology-related names
Th, Pm, Ce, Ta, Ti, Pd, Ir
Created a three-dimensional spiral chart that demonstrated periodic relationships between elements based on their atomic weights. (1862)
Alexandre-Émile Béguyer de Chancourtois
What are some examples of metals
Iron, copper, gold, and silver
What are metalloids?
Elements that have properties of both metals and nonmetals
What is slaters rule??
A set of rules used to estimate the shielding constant, which can be used to calculate Zeff.
Elements that came from place names
Fr, Po, Ge, Ga, In, Eu, Am, Cf, Sc
The current layout of the periodic table was officially settled in what year?
2016
What are some key properties of metals
They are good conductors of heat and electricity, lustrous, malleable, and ductile
What are noble gasses?
Elements in group 18 that are very stable and do not readily form compounds
What is a trend?
It means that shielding generally increases as you move down a group in the periodic table because the distance between the nucleus and the outer electrons increases.