Which of the following elements is most likely to form an ion that will then form an ionic bond with an ion of a Group 1A element?
Pt
I
Fr
Be
To determine which element is most likely to form an ion that will then form an ionic bond with an ion of a Group 1A element, we need to consider the valence electrons in each element.
The Group 1A elements, also known as alkali metals, have one valence electron. In order to achieve a stable electron configuration, they tend to lose this one electron and form a positive ion.
Among the given options, the element most likely to form an ion that can bond with a Group 1A element is "Fr" or francium. Francium is located in Group 1A and therefore has one valence electron, which it can easily lose to form a positive ion. Ionic bonds typically form between atoms that have a large difference in electronegativity, with a highly electropositive element donating an electron to a highly electronegative element.
To determine which element is most likely to form an ion that will then form an ionic bond with an ion of a Group 1A element, you will need to consider the trends in the periodic table.
Group 1A elements, also known as alkali metals, readily form +1 ions by losing one electron. They have only one valence electron in their outermost electron shell.
Now, let's look at the elements given:
- Pt (Platinum) is not likely to form an ion that would bond with a Group 1A element because it is a transition metal and tends to form various oxidation states rather than a single charge.
- I (Iodine) belongs to Group 7A in the periodic table and tends to gain one electron to form a -1 ion.
- Fr (Francium) is an alkali metal and belongs to Group 1A. It has only one valence electron, making it highly likely to form a +1 ion.
- Be (Beryllium) belongs to Group 2A and tends to form a +2 ion by losing two electrons. While it can form an ionic bond, it is less likely to bond specifically with a Group 1A element.
Based on this analysis, the element most likely to form an ion that will then form an ionic bond with an ion of a Group 1A element is Fr (Francium).