The first element of each period in the periodic table
Answers
Answer:
H, Li, Na, K, Rb, Cs, Fr
hydrogen
lithium
sodium
potassium
rubidium
caesium
francium
Answer:
The first element of each period in the periodic table is Hydrogen.
Explanation:
The periodic table is a table of the chemical elements organized in t ordering of atomic numbers, usually in rows, so that elements with identical atomic structure (and therefore similar chemical properties) occur in vertical columns.
The periodic table is arranged by atomic weight and valence electrons. These variables permitted Mendeleev to place each element in a certain row (named a period) and column (named a group). The table includes seven rows and 18 columns.
Hydrogen(H) exists as a gas and is the first element on the periodic table. It lacks color, flavor, or odor, and exists highly flammable. Its molecular formula is H2. Hydrogen (symbolized H) is one of the elements. Its atomic number exists 1 and it is a colorless, tasteless, odorless nonmetallic gas. Hydrogen is highly flammable and is the most delicate of all the elements.
#SPJ2