Period 4 element be dangerous in large enough quantities due to its radioactivity. Nickel (Ni) is an element in period 4, between cobalt and copper. Nickel is rare in the Earth's crust, mainly due to the fact that it reacts with oxygen in the air, with most of the nickel on Earth coming from nickel iron meteorites. However, nickel is incredibly common in the Earth's core; along with iron it is one of the two main components. Nickel is an important component of stainless steel, and in many superalloys. Copper (Cu) is an element in period 4, between nickel and zinc. Copper is
CU London the former Dagenham Civic Centre building, as a hub for community events. This has included the Annual Conference of the All Women’s Network and Run4Life. CU London has also developed a range of bursaries and funding sources for young people and teachers in the London Borough of Barking and Dagenham. The CU London Open Bursary Fund offers additional tutoring in maths and English and a £10,000 donation was made to the Colin Pond Trust Fund to provide extra financial help across local schools. CU London CU London is a Higher Education institute owned and governed by Coventry University. CU London