1A Atomic lons
Most common form on top
2A
H
7A
|NaMo 30
AP
u
ЗА 4 5 6А
He
UB
BCN0F Ne
BB
48 58 68 78
1B 28
psorar
K|CSC: Mn Fe Co Nalan
C+Mn Fe Co N
Zn Ga Ge As Se Br Kr
lou
AB/s/p/2 NO
Snso
CsBar R0PA "Hont po? BP por
P? Au Hg TPO BA Pour
AR
FrRrA
IR
INOMOTE
Pad
P/Ag"/col
Ine
D
Question 1
2 pts
Which of the following is true of a chemical reaction?
(Al Only physical changes occur.
[B] New substances must form.
IC Only changes of state occur.
[DJ Chemical properties remain the same.

yes

explanation:

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ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.