gas
a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.
Hydrogen
the chemical element of atomic number 3, a soft silver-white metal. It is the lightest of the alkali metals.
Lithium
the chemical element of atomic number 15, a poisonous,
phosphorus
the chemical element of atomic number 37, a rare soft silvery reactive metal
rubidium
What family of elements is in the right-most column of the Periodic Table
Noble gases
the chemical element of atomic number 7, a colorless, odorless unreactive gas
Nitrogen
atomic number 4, a hard gray metal.
Beryllium
the chemical element of atomic number 33
arsenic
cesium
Elements in the same column of the Periodic Table have what in common
The same number of electrons
a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.
Oxygen
Aluminum
the chemical element of atomic number 34
selenium
the chemical element of atomic number 87, a radioactive member of the alkali metal group
francium
Which of the following is the chemical symbol for the element gold
Au
produced by burning carbon and organic compounds and by respiration.
Carbon Dioxide
strong, hard magnetic silvery-gray metal, the chemical element of atomic number 26
iron
the chemical element of atomic number 17
chlorine
the chemical element of atomic number 12, a silver-white metal of the alkaline earth series.
Magnesium
if i am in period 4 how many atomic orbitals do i have
4
Helium
a red-brown metal, the chemical element of atomic number 29.
copper
which element has a larger atomic mass Fluorine with a atomic number 9 or bromine with a atomic number 35
bromine
the chemical element of atomic number 88, a rare radioactive metal of the alkaline earth series.
radium
if i am in period 2 how many atomic orbitals do i have
2