SKYBLUE1015
06.11.2020 •
Chemistry
25. Which of the following statements concerning atomic structure is/are correct?
1. The nucleus contains most of an atom's mass.
2. The nucleus contains all the positive charge of an atom.
3. Electrons surround the nucleus and account for the majority of an atom's volume.
1 only
2 only
3 only
2 and 3
1, 2, and 3
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Ответ:
It would be 2 and 3
The image shows the structure of an atom, I hope it helps :)
Ответ:
yes, he would see the light first, depending on distance he might hear it but might not notice it.
Explanation: light travels lightyears away and is seen rather quickly. sound waves are much slower but you can hear it.