The elements in group 17 of the periodic table are all called halogens. All halogens have the same

0

atomic number.

atomic mass.

number of possible isotopes.

number of valence electrons.

Question

Chemistry

Stanley Schneider

21 January, 04:28

The elements in group 17 of the periodic table are all called halogens. All halogens have the same

0

atomic number.

atomic mass.

number of possible isotopes.

number of valence electrons.

+3

Answers (2)

Know the Answer?

Gemma Weeks · Answer 1

number of valence electrons

Explanation:

All of the elements in group 17, also known as group 7A, have 7 valence electrons.

No two elements have the same atomic number nor atomic mass in elemental form.

Halogens may have any number of isotopes.

Catalina · Answer 2

(D) number of valence electrons.

Explanation:

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The elements in group 17 of the periodic table are all called halogens. All halogens have the same0atomic number.atomic mass.number of possible isotopes.number of valence electrons.

The elements in group 17 of the periodic table are all called halogens. All halogens have the same

0

atomic number.

atomic mass.

number of possible isotopes.

number of valence electrons.