The atomic number of an element is 20.
1 point
i) Identify the period of the modern periodic table could this element be placed? And
ii) Whether the element is a metal or a non-metal?
a) It belongs to Group-3. And ii) Metal
b) It belongs to Group-2. And ii) Non-Metal
c) It belongs to Group-4. And ii) Non-Metal
d) It belongs to Group-2. And ii) Metal
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Answer:
The element is calcium.
It belongs to fourth period and second group.
It is a metal.
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