2 This question is about hydrogen, the element with atomic number Z =1.(a)(i) Hydrogen has two stable isotopes, H and H. Complete the table to show the number of subatomic particles present in the nuclei of these two isotopes of hydrogen.(1)Isotope Number of protons Number of neutrons...
Helium atoms have 2 electrons and 2 protons. Its atomic weight is 4.003, which is also seen in the periodic table. Next tohydrogen, helium is the second lightest element, with a density of 0.000164 grams per centimeter cubed at 20 degrees Celsius. ...
2 (a) Define the term isotope.Atoms of the same element atoms with same proton number atoms with same atomic number different neutron number nucleon number mass nu2(b)The table gives information about four particles, A, B, C and D.Complete the table.The first line has been done for you...
The boron element, which is never found free in nature, forms compounds with different properties with various metals or non-metal elements. In this regard, many boron compounds are used in different branches of the industry. In boron compounds, it behaves like non-metal compounds. Pure boron ...
What is the element with symbol Xe? Elements: The substances that comprises of many atoms with equal number of protons are referred as elements. The combination of many blocks of atoms results in the formation of element. Every element has unique characteristics property. ...
Articles of jewellery and parts thereof, of precious metal or of metal clad with precious metal (excl. articles > 100 years old) Commodity code: 71 137113 Articles of jewellery and parts thereof, of silver, whether or not plated or clad with other precious metal (excl. art...
Aluminium is a reactive metal and cannot be extracted from its ore, bauxite (Al2O3), through reduction with carbon. Instead it is extracted by electrolysis – the metal is oxidized in solution and then reduced again to the pure metal. The ore must be in a liquid state for this to ...
(biochemistry) A substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with an identical number of protons (general) A fundamental component of a composite entity (such as asieve elementthat makes up thephloemsinangiosperms) ...
Two elements differ from each other because of a different number of protons in their nuclie. The number of protons in the nucleus of an atom is known as the atomic number and this number is unique for every element placed in the periodic table. If the atomic number ...
Answer to: Isotopes are atoms of the same element with the same number of protons and a different number of: A. ions B. molecules C. electrons D...