Given the following thermochemical data at 25°C and 1 atm pressure, 02(8) + 2B(3) -- B2O3(); AHP =-1264 kJ
03(g) + 2B(s) BLO3(); AH° = -1406 kJ
determine AH” for the following reaction at 25°C and 1 atm pressure.
302(g) → 203(g)
-980 kJ/mol
+284 kJ/mol
+980 kJ/mol
-2670 kJ/mol
-284 kJ/mol

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

Cis the

C) electrons encircling a nucleus with neutrons and protons

The total number of electrons is 14