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What is an element that is crucial building block of DNA?

What is the element that makes up approximately 50% of bones mass?

What is the radioactive heavy metal, often considered as the most dangerous element?

What property does noble gases share? ​

Respuesta :

heysdaddias123

1. Adenine, cytosine, guanine, or thymine.

2. Calcium

3. They are many different radioactive heavy metals, but the most dangerous elements is arguably Polonium.

4. They are all odorless, colorless, monatomic gases with very low chemical reactivity.

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