Answer:
It is nb 2 as i think . Good luck
An element from Group 2 will form ionic bonds with a nonmetal, Groups 13-17
Explanation:
An ionic bond is formed between a "metal and non-metal". The valence electrons are lost in one and gained in the other atom. It involves electrostatic forces between the two ions which are of opposite charges.
When one atom(metal) losses an electron, it becomes a "positive ion". Similarly, when the other atom(non-metal) gains an electron it becomes a negative ion. For example: The formation of NaF(Sodium Fluoride).
Answer:
answering so the person who wanted brainliest can get it :D
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For example, silicon has 14 protons and 14 neutrons. Its atomic number is 14 and its atomic mass is 28.