That element is NOT in the family. Every Learner Deserves Support Whilst Studying at Home When we told you about families, we said that they were groups of elements that react in similar ways. There are many reasons for including hydrogen among the elements in Group IA. Because Hydrogen and Helium belong to different periodic 'groups'. Hydrogen reacts with oxygen to form an oxide, which all group 1 elements do as well. But wait. Starting at the top we find hydrogen (H). Hydrogen is a diatomic gas in it's elemental state, which is different from the other group one metals (and similar to the group … In this sense, hydrogen is more like a halogen and so you could say it is in group 7 So, hydrogen … The alkali metals cannot do this. You can't call it an alkali metal because it is not a metal. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons in its nucleus.Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. Hydrogen is a very special element of the periodic table and doesn't belong to any family. It is present as a gas in the atmosphere only in tiny amounts – less than 1 part per million by volume. Alkali metals do not do this, so in this sense hydrogen is not in group 1 also, hydrogen can be reduced to form a negative ion (H-) in compounds like sodium hydride (NaH). 0 … Group-1 or IA Elements. Anonymous. Hydrogen (symbol:H) is a chemical element.Its atomic number is 1. The Hydrogen element belongs to the 'Hydrogen' group, whereas the Helium element belongs to the 'noble gas' group. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Atomic Number – Protons, Electrons and Neutrons in Hydrogen. Metal. Because hydrogen forms compounds with oxidation numbers of both +1 and -1, many periodic tables include this element in both Group IA (with Li, Na, K, Rb, Cs, and Fr) and Group VIIA (with F, Cl, Br, I, and At). Any hydrogen that does enter the atmosphere quickly escapes the Earth’s gravity into outer space. On MathsGee Skills QnA students, teachers and enthusiasts can ask and answer any interview questions. 1 decade ago. Reason why hydrogen can fit into group 7 ( less electron) Hydrogen has one electron less than the nearest noble gas, so do all the halogens. To which group of elements does hydrogen belong: Metals, Non – Metals or Metalliods? The two hydrogens are the same, but some periodic tables show hydrogen in both places to emphasize that hydrogen isn't really a member of the first group or the seventh group. Group-1 or IA in the periodic table contains seven elements like hydrogen, lithium, sodium, potassium, rubidium, cesium, and francium with the general electronic configuration of valence electron = ns 1, where n = 1 to 7. While hydrogen sits in Group I, it is NOT an alkali metal. Hydrogen belongs in group 1 of the periodic table along with the Alkali Metals. At standard temperature and pressure, hydrogen has no color, no smell and no taste.It belongs to nonmetal, and it is highly flammable.It is a diatomic gas with the molecular formula H 2.Its atomic mass is 1.00794 amu, making hydrogen the lightest element.. Hydrogen is the most abundant of the chemical elements. 2 0. On Earth, hydrogen is found in the greatest quantities as water. 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