Kellie found a sample of a pure element. She carefully studied the sample and made a list of its properties.
• silvery metal
• solid at room temperature
• malleable, ductile
• slightly corroded
Which element did Kellie find?
A. Au
B. Cl
C. Si
D. Fe
Andrej has been asked to identify an element by determining its wavelength of electromagnetic radiation. Which test will Andrej conduct to identify the element?
A. pH test
B. flame test
C. buoyancy test
D. conductivity test