To understand which elements correspond to these electron configurations and charges, we need to consider the positions of elements in the periodic table.
1. For the first part of the question, an element with 2 electrons and a +1 charge is Sodium (Na). Sodium has 11 protons but when it loses one electron to get to a +1 charge, it effectively has 10 electrons. However, it’s important to note the +1 charge implies it has lost an electron, meaning its neutral state had 11 electrons. The neutral sodium atom has 11 protons and 11 electrons, and when it loses 1 electron, it becomes Na+ with 10 electrons.
2. For the second part of the question, an element with 18 electrons and a +3 charge is Aluminum (Al). Aluminum typically has 13 protons and in its neutral state has 13 electrons. When it loses three electrons to achieve a +3 charge, it then has 10 electrons remaining. Therefore, in its ionized form (Al3+), it has 10 electrons.
In summary, the element that has 2 electrons and a +1 charge corresponds to Sodium, while the element with 18 electrons and a +3 charge corresponds to Aluminum. It’s essential to understand that the charges reflect the loss of electrons from the neutral state of these elements.