As far as I can tell the best answer for this would be (A) Neon. However, I would argue that this is at the very least a misleading question. Atoms are less identified by their electrons than their protons (which is represented always by its atomic number). Although atoms can gain or lose electrons, the protons would never change (and remain the same element). Personally, I would have written the question as, "When Magnesium loses its valence electrons, its new number of electrons would most closely resemble _____"
Explanation:
CO2 is called as gas because it exist in single thermodynamics state i.e CO exist in gases state only at room temperature.
The correct answer is 3 moles of nitrogen
Hope this helped :)
<span>organic compounds is ur awnser </span>
Answer:
Mass = 167.25 g
Explanation:
Given data:
Number of moles of francium = 0.750 mol
Mass of francium = ?
Solution:
Formula:
Number of moles = mass/ molar mass
Mass = number of moles × molar mass
Molar mass of francium = 223 g/mol
Mass = 0.750 mol × 223 g/mol
Mass = 167.25 g
