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a) Atomic nmbr of element is 20.
b) It belongs to group nmbr 2 and period nmbr
3.
c) The element is Calcium.
d) An element having chemical properties similar to calcium is Magnesium.
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b) It belongs to group nmbr 2 and period nmbr
3.
c) The element is Calcium.
d) An element having chemical properties similar to calcium is Magnesium.
Hope this hlps u!!
Plz mark as brainliest!!❤❤
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3
a)The atomic number is 20
b)group number 2 and period number 3
c)the element is calcium
d) barium or radium
b)group number 2 and period number 3
c)the element is calcium
d) barium or radium
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