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1which of the following happens when rubidum forms a ion
it gains an electron and has an octet in the lowest energy level
it loses an electron and has an octet in the next lowest energy level
it gains an electron and has an octet in its outer shell
it loses an electron and has an octet in its innermost shell
2 which of the following ions is an oxyanion
SO4^2-
F-
SCN-
NH4+
3 in the mineral beryl {BeAl2(Sl03)6} what is the ratio of beryllium to aluminum to silicon(SlO3)
1:2:3
1:1:1
1:2:6
1:3:6
4 the bond strength of compounds A,B.C and D as measured by their bond engergies (kl/mol) 350,500,180, and 1,450, respectively which compound will most likely conduct electricity when dissolved in water hint the compound has a high bond energy then it will be an ionic compound
compound C
compound A
compound D
compound B
5 which of the following ions would represent the ion of an element from group 2A
Z+
T3+
X2-
E2+
6 which of the following is a property of an ionic compound
low boiling point
brittle
blue
low melting point
7 which of the following ions will most likely form a precipitate when reacted with SO4^2-
Ba 2+
l-
Na+
K+
8 which of the following compoundscontains a triple bond
methane
acetylene
chlorine
ammonia
9 in an electron dot diagram of ethylene how many double bonds are present
three
none
two
one
10 what is a molecular shape of silicon tetrabromide
pyrimidal
bent triatomic
linear
tetrahedron
Explanation & Answer
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