The correct answer is an alkali metal and a halogen. In this type of reaction, alkali metals (which are found in Group 1 of the periodic table) lose one electron to form positive ions, while halogens (found in Group 17) gain an electron to form negative ions.
In an example of a chemical reaction, atoms of one element each lose an electron. Atoms of another element each gain an electron. What could be the two elements? (1 point)
Responses
a halogen and a noble gas
an alkali metal and a halogen
two halogens
two alkaline earth metals
1 answer