Selenium (Se) the most common isotope of this element. The nucleus consists of 34 protons (red) and 46 neutrons (blue).
Answer:
2AL(ClO3)3 → 2ALCl3 + 9O2
Explanation:
Answer:
Nitrogen
Explanation:
Nitrogen has 5 Valence Electrons.
And its atomic mass is also less than Bismuth.
There are other elements in the 5th row but this one has the lowest atomic mass compared to the others.
The original sample was a compound because it was composed of two different elements and was not purely one element
Answer:
Scientific knowledge involves human inference, imagination, and creativity. Despite having an empirical basis of scientific knowledge, it involves scientist's imagination and creativity