Question

Elements of Groups 1A, 2A, and 3A form only one type of cation, and it is named ________?

1) Anion
2) Cation
3) Ion
4) Molecule

Answer 1

Elements of Groups 1A, 2A, and 3A form cations, which are positively charged ions named by using the element name plus "ion" (e.g., sodium ion for Na+).The correct answer is option 2.

Step-by-step explanation:

Elements of Groups 1A, 2A, and 3A form only one type of cation, and it is named a cation. This is because these elements typically lose electrons to form positively charged ions.

For instance, Group 1 elements form 1+ ions (e.g., Na+), Group 2 elements form 2+ ions (e.g., Ca2+), and Group 3 elements form 3+ ions (e.g., Al3+). These cations are named using the element name followed by the word "ion." For example, Na+ is referred to as a sodium ion.

The charges of the cations are indicated with a superscript following the chemical symbol. Transition metals, in contrast to main group elements, can form more than one type of cation with different ionic charges.The correct answer is option 2.