Describe the difference between an atomic element and a molecular ...

[erika]

Describe the difference between an atomic element and a molecular element.
 
  What will be an ideal response?

Question 2

Predict the charge of the most stable ion of bromine.
 
  A) 2+
  B) 1+
  C) 3+
  D) 1-
  E) 2-

Question 3

Determine the theoretical yield and the percent yield if 21.8 g of K2CO3 is produced from reacting 27.9 g KO2 with 29.0 L of CO2 (at STP). The molar mass of KO2 = 71.10 g/mol and K2CO3 = 138.21 g/mol.
 
  4 KO2(s) + 2 CO2(g)  2 K2CO3(s) + 3 O2(g)
 
  A) 27.1 g, 80.4  yield
  B) 179 g, 12.2  yield
  C) 91.7 g, 23.8  yield
  D) 206 g, 10.6  yield
  E) 61.0 g, 35.7  yield

Question 4

Choose the paramagnetic species from below.
 
  A) Ti4+
  B) O
  C) Ar
  D) All of the above are paramagnetic.
  E) None of the above are paramagnetic.

Question 5

Choose the diamagnetic species from below.
 
  A) Sn2
  B) Br
  C) P
  D) Cr
  E) None of the above are diamagnetic.

[orangecrush]

Answer to Question 1

Atomic elements exist in nature with a single atom at their basic unit; molecular elements exist in nature with more than one atom as their basic unit.

Answer to Question 2

D

Answer to Question 3

A

Answer to Question 4

B

Answer to Question 5

A

[erika]

Gracias!

[ghepp]

Excellent