For elements 1-20, we can use the periodic table to predict.

A) An elements color

B) The number of valence electrons an element has

C) The number of isotopes an element has.

Question

Chemistry

Darian Blake

30 May, 02:11

For elements 1-20, we can use the periodic table to predict.

A) An elements color

B) The number of valence electrons an element has

C) The number of isotopes an element has.

+3

Answers (2)

Know the Answer?

Danica Ewing · Answer 1

B.

Explanation:

We can predict the number of valence electrons by which group of the Periodic table an element resides.

For example Lithium is in group 1 and has 1 valency electron.

Bryanna Nguyen · Answer 2

B

Explanation:

because a periodic table shows the arrangement of element according to their atomic number and their valence neither

isotopes nor colour

For elements 1-20, we can use the periodic table to predict.A) An elements colorB) The number of valence electrons an element hasC) The number of isotopes an element has.

For elements 1-20, we can use the periodic table to predict.

A) An elements color

B) The number of valence electrons an element has

C) The number of isotopes an element has.