Answer 1: Oxygen has 6 valence electrons. To have a complete outer shell, it will most likely gain two electrons giving it a -2 charge.
Answer 2: An isotope is a variant form of an element that has the same number of protons but a different number of neutrons in its nucleus.
Answer 3:
Li - 1 valence electron
Ca - 2 valence electrons
B - 3 valence electrons
Se - 6 valence electrons
Answer 4: If lithium and oxygen were placed together, they would most likely form Li2O (lithium oxide). This is because oxygen needs to gain two electrons to have a complete outer shell, and lithium can lose one electron. So, two lithium atoms would combine with one oxygen atom to form lithium oxide.
Question 1: Oxygen has ____ valence electrons. To have a complete outer shell it will most likely (gain / lose) two electrons giving it a ( +2 / -2 ) charge.
Question 2: What is an isotope?
Question 3: How many valence electrons do the following elements have?
Li - ______ Ca - _____ B - _____ Se - _____
Question 4: If Lithium and oxygen were placed together - predict what most of it would form (circle one): Li O (Lithium monoxide) Li2 O (Lithium Oxide) or Li2O2 *(Lithium peroxide) Why?
1 answer
1 answer