Chemical element same atomic number, or number of protons. Nuclear scientists, however, define a pure element as one that consists of only one stable isotope. For example, a copper wire is 99.99% chemically pure if 99.99% of its atoms are copper, with 29 protons each. However it is not isotopically pure since ordinary copper consists of two stable isotopes, 69% Cu and 31% Cu, with different numbers of neutrons. However, a pure gold ingot would be both chemically and isotopically pure, since ordinary gold consists only of one isotope, Au. Atoms of chemically pure elements may bond to each other chemically in
CU London CU London CU London is a Higher Education institute owned and governed by Coventry University. CU London began offering courses to students in September 2017 and currently operates in the Dagenham Civic Centre in the London Borough of Barking and Dagenham. It is Coventry University's second campus in the capital alongside Coventry University London. CU London offers a range of subjects across Foundation, HNC, HND and degree level, which students can study full-time or part-time on evenings or weekends. Subjects offered by CU London include: Beyond its work teaching on undergraduate courses, CU London has continued to use its campus,