Which of these elements are metals.
Which of these elements are non metals.
Which elements will form anion.
which elements will form cation.
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5
Answer:
B and C are metals.
A and D are non-metals.
B and C will form cations.
A and D will form anions.
Explanation:
Elements with 1, 2 or 3 e‐ in their Valence shell are metals and form cations.
Elements with 4, 5, 6, or 7 e‐ in their Valence shell are non-metals and form anions.
Answered by
2
Answer:
The value of the expression y² - 2y + 6 for y = 2 is
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