Answer:
1. B
2. C
3. B or D
6. A
7. D
8. A
9. A
Explanation:
Brainliest plz answered to the best of my abilitys
1) <span>this ion is an anion
cations are ions which have given out electrons and are positively charged
anions are ions which have taken in electrons and are negatively charged. the ion given has a negative charge which means it has taken in an electron therefore its an anion.
2)</span><span>what is the chemical symbol of the noble gas this ion is isoelectronic with ? atomic number of the ion is 10, this corresponds to the noble gas Neon - Ne.
</span>chemical symbol is Ne
3) <span>what is the formula of the ion?
the ion has a negative charge of -1. this means it has taken in one electron hence the electronic configuration before taking in the electron, when the </span>atom is neutral is 1s² 2s² 2p⁵
then the atomic number is 9, element with atomic number is fluorine.
therefore element is F
formula of ion is F⁻
Chromium has a total of 28 neutrons. This is found because we subtract the number of protons (the atomic number) from the mass number. 52 minus 24 gives us 28. It also has 24 electrons.
Answer:
Every single living thing are comprised of cells. Cells are the fundamental units of structure and capacity in living things. New cells are delivered from existing cells.
To come up with the mass of the atom is you add the protons with the neutrons
so you have
60+89=149
