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elements in group 2 of the periodic table have_____valence electrons?
elements in group 2 of the periodic table have_____valence electrons?
A. 2
B.6
C.7
D. various numbers depending on the periodic number.
3 Answers
- BinaryHedgehogLv 58 years agoFavorite Answer
The answer is A. The A group numbers are always the same as the number of valence electrons of the elements within it. However, transition metals, the lanthanides and the actinides all have 2 valence electrons since their groups fill in the d and f sub levels.
- 8 years ago
2 valence electrons..
group one has 1, two 2, the transition metals vary, group 3A (starting with boron) has 3, 4A has 4 and so on.. group 8A has 8 and are the most stable
