Question

Which of the following is true according to Periodic Law?
A.
Elements in the same group have similar physical and chemical properties.
B.
Elements in the same period have similar physical and chemical properties.
C.
Elements in the same group have similar physical but differing chemical properties.
D.
Elements in the same period have similar physical but differing chemical properties.

Answer 1

@ml1042903

Answer 2

http://dwb.unl.edu/teacher/nsf/c04/c04links/www.fwkc.com/encyclopedia/low/articles/p/p019000875f.html

PERIODIC LAW, in chemistry, law stating that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number. Progressing from the lightest to the heaviest atoms, certain properties of the elements approximate those of precursors at regular intervals of 2, 8, 18, and 32. For example, the 2d element (helium) is similar in its chemical behavior to the 10th (neon), as well as to the 18th (argon), the 36th (krypton), the 54th (xenon), and the 86th (radon). The chemical family called the halogens, composed of elements 9 (fluorine), 17 (chlorine), 35 (bromine), 53 (iodine), and 85 (astatine), is an extremely reactive family.

Answer 3

A?

Answer 4

That's what I think as well. :)

Answer 5

Do you have another one for me?

Answer 6

Soooooooooooooooooooooo...... now what?

Answer 7

ill have some more soon:)

Answer 8

okey dokey!