Asked in ScienceAtoms and Atomic Structure
Atoms and Atomic Structure
Which gas in the air exists as single atoms?
August 30, 2007 2:02PM
Helium Neon Argon Krypton Xenon Radon
These are the nobel gasses which have their out electron shells full and thus don't bond easily with other atoms. Argon makes up almost 1% of the atmosphere.
Asked in Atoms and Atomic Structure
What elements are always found as single gas atoms?
In certain mass of gas the number of atoms and the number of moleucules are equal How?
Asked in Science, Atoms and Atomic Structure
How are atoms and molecules related and give an example?
Asked in School Subjects, Energy
How do atoms of oxygen and hydrogen differ?
A hydrogen atom is made from one proton and one electron. An oxygen atom has 8 protons and 8 electrons. Hence their "Atomic Numbers" are "1" for hydrogen and "8" for oxygen. However their "Atomic Weights" are 1 for hydrogen and approximately 16 for oxygen because, in a normal atmosphere, hydrogen exists as a gas cloud of single atoms whereas oxygen exists as a gas cloud consisting of pairs of atoms.
Asked in Elements and Compounds
How many moles of bromine atoms in 1 mole of bromine gas Please show equation?
Do molecules make up elements?
When an element is referenced, it normally is considered as a single atom, as in the periodic table. When elemental material is referenced, it is considered in aggregate form (assemblies of like atoms). For example: elemental hydrogen normally exists as a molecular gas, two atoms comprising each molecule; elemental Iron normally exists as large numbers of iron atoms in an aggregate, crystalline form (iron metal).