It is an element. If it is not in the Periodic Table it is not an element.
The ionic compound Mg3P2 is called magnesium phosphide.
Magnesium is a meta element. Atomic number of it is 12.
Magnesium is a meta element. Atomic number of it is 12.
Magnisium
the large jump is caused because magnisium is such a powerful element that if it was combined in an explosive it have the power of an atomic bomb
there are 12 protons in magnisium
Magnesium is a solid at room temperature. It is a metallic element with a shiny, silver-white appearance.
element. Sulfur dioxide (SO2) is a compound
KCl is a compound not an element.
cornstarch is a compound element.
Beryllium is an element. It is not a compound
First of all you have mispelled it as 'hellium' . It is 'HELIUM'. It is an element. It atomic No. is '2' , so therefore it is found in position number '2' in the Periodic Table, as 'He'. It is neither a compound nor a mixture. The chemical symbol for helium is 'He '. It's Atomic Mass is '4' It is compsed of 2 protons, 2 neutrons and two electrons. It is the MOST Noble(Inert) of all the elements. It does NOT react with anything. Therefore it exists 'monatomically' (single atoms). Its condensing point is 7 K ( - 266 oC) (Becomes a liquid) Its freezing point is 4 K . ( - 269 oC) (becomes a solid). The name 'helium' is from Classical Greece, and means 'from the Sun'(Helios), because two hydrogen atoms fuse together in the Sun , they form 'Helium'.