Hydrogen is more like Helium as it is a gas and will combust in the presence of oxygen.
Even though hydrogen is placed in the same group as all the reactive metals such as sodium and potassium, this is one exception where the properties hydrogen does not match the others in the same group.
Hydrogen, Helium, Gold, Silver, Sillicon, Lithium, Oxygen and many more.
Hydrogen, Helium, Lithium, Berylium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon are the first 10 - there are many more and are in the periodic table
Helium has the highest binding energy per nucleon among Hydrogen, Lithium, Helium, and Beryllium atomic elements. This is due to helium having a more stable nucleus because of its higher number of protons and neutrons, leading to stronger binding forces.
Helium has more mass than hydrogen. Helium is composed of two protons and two neutrons, while hydrogen is a single proton.
Hydrogen, Helium, Lithium, Berylium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon are the first 10 - there are many more and are in the Periodic Table
If you wanted to be entirely pedantic about it, all elements have this possibility if you ignore absurd energy boundries. In reality, we can see that elements such as Hydrogen, Helium, Lithium will never fill an octet since they are so small. Lithium, for example, has 3 electrons. it would have to gain 5 electrons in order to complete an octet. That's unlikely enough without considering the fact that almost every element on the table is more electronegative than Lithium and so will steal it's electron density during bonding.
The light elements include Hydrogen, Helium, and Lithium. Some lists might include more. The light elements were initially formed in the big bang and current universal levels of hydrogen and helium agree very well with the levels produced in the big bang. Much less lithium was produced in the big bang, with most being produced later in stars. Elements past lithium were produced only later in stars.
gases,like hydrogen,methane,helium and more
hydrogen.
hydrogen.
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Hydrogen is a very unique element. It really can't be classified with any others. However, due primarily to the fact that helium rarely bonds, hydrogen is probably closer to sodium.