Which of the following is the algebraic expression that best describe the sequence?

Algebraic expression: It is an expression which is frame from the variables (x,y etc.), integer constants and algebraic operations (+,- , multiplication and division etc.).

Sequence is defined as the structured list of numbers.

Now, according to the given sequence, first place is , second is , third is , fourth is . Thus, place of the sequence should be determined.

The place of the sequence is . Therefore, option (A) is correct.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

particle   p is an electron and particle q is a neutron