Periodic Table Flashcards
What’s the evolution of the peridic table?
Mendeleev continued to improve his ordering; in 1870, it gained a tabular shape, and each column was given its own highest oxide, and in 1871, he further developed it and formulated what he termed the “law of periodicity”. Some changes also occurred with new revisions, with some elements changing positions.
What are metals on the periodic table, and where are they located on the periodic table?
Metals are found on the left and in the middle.
What are non-metals on the periodic table, and where are they located on the periodic table?
Nonmetals are located on the far right side of the periodic table, except hydrogen, which is located in the top left corner. The 17 nonmetal elements are: hydrogen, helium, carbon, nitrogen, oxygen, fluorine, neon, phosphorus, sulfur, chlorine, argon, selenium, bromine, krypton, iodine, xenon, and radon.
What are transition metals, and where are they located on the periodic table?
The metallic elements that serve as a bridge, or transition, between the two sides of the table. More specifically, transition metals are found in groups 3-12 and periods 4-7.
What are alkali metals, and where are they located on the periodic table?
The alkali metals are six chemical elements in Group 1, the leftmost column in the periodic table. They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
What are alkaline-earth metals, and where are they located on the periodic table?
An alkaline earth metal is any of six elements located in Group 2 of the periodic table. These metals are: barium (Ba), beryllium (Be), calcium (Ca), magnesium (Mg), radium (Ra), and strontium (Sr).
What are halogens, and where are they located on the periodic table?
The halogen elements are the six elements in Group 17 of the periodic table. Group 17 occupies the second column from the right in the periodic table and contains fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
What are noble gases, and where are they located on the periodic table?
They are located in the far right of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
What is a element square?
Each square of the periodic table gives particular information about the atoms of an element. The number at the top of the square is the atomic number, which is the number of protons in the nucleus of an atom of that element. The chemical symbol is an abbreviation for the element’s name.
What does the atomic number represent?
The number of protons in the nucleus of each atom of that element. This means that the number of protons is the characteristic which makes each element unique compared to all other elements.
What does the atomic mass represent?
Each element in the periodic table consists of atoms, and each atom has a unique atomic mass and unique atomic number. The atomic number refers to the number of protons in the atom’s nucleus, while atomic mass reflects the sum of the number of protons and neutrons.
