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Which of the following atoms is most likely to become a cation?

A. Oxygen, atomic number 8

B. Fluorine, atomic number 19

C. Helium, atomic number 2

D. Fluorine, atomic number 9

Answer Explanation:

Fluorine has a high electronegativity, and therefore, it has a strong attraction for electrons and tends to gain electrons to form anions. Therefore, it is more likely to become a cation by losing an electron.

Therefore, the Correct Answer is D.

More Questions on TEAS 7 Science

  • Q #1: Which of the following endocrine organs in the diagram below is involved in regulating milk production following childbirth?

    A. Pituitary gland

    B. Thyroid gland

    C. Adrenal glands

    D. Ovaries

    Answer Explanation

    The pituitary gland produces prolactin, which regulates milk production

     

  • Q #2: Using the equation PH = -log (H+), a solution with a (H+)= 10+ M has a PH of which of the following?

    A. 9

    B. 5

    C. 1

    D. 10

    Answer Explanation

    Concentration of H+ in the solution = 10 −1  M

    pH= -log(10 −1)

    pH= -(-1)

    =1

  • Q #3: Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

    A. Sebum

    B. Water

    C. Lysozymes

    D. Urea

    Answer Explanation

    Urea is a nitrogenous waste product that is produced when the liver breaks down proteins and amino acids. It is then excreted from the body via sweat.