chromium and copper

Dear Student

Chromium is a chemical element with symbol Cr and atomic number 24
It is the first element in Group 6

Copper is a chemical element with symbol Cu (from Latin: cuprum) and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color.

Both are d block elements very useful in making alloys.