Consider the positions of carbon, nitrogen, potassium, and calcium on the periodic table. the atoms of which element attract electrons most strongly in chemical bonds? carbon (c) calcium (ca) nitrogen (n) potassium (k)

Option (c) is the correct answer.

Explanation:

Elements which are electronegative in nature tends to attract electrons towards themselves.

Out of the given options nitrogen has the highest electronegativity. Also, atomic number of nitrogen is 7 and its electronic configuration is .

So, in order to completely fill its octet it requires only one electron. Therefore, nitrogen will readily attract an electron.

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"