Answer:
bond angles of 120 degrees.
Answer:
no
Explanation:
Radium is silvery, lustrous, soft, intensely radioactive. It readily oxidizes on exposure to air, turning from almost pure white to black. Radium is luminescent, corrodes in water to form radium hydroxide. Although is the heaviest member of the alkaline-earth group it is the most volatile.
Answer:
Permanent = false
Explanation:
All of the other choices are true
Answer:
In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium.
