## iheartfood 2 years ago #1: What does the periodic law state?

1. iheartfood

A. When elements are arranged in order of increasing atomic mass, there is a recurring pattern to their physical and chemical properties. B. When elements are arranged in order of increasing atomic size, there is a recurring pattern to their physical and chemical properties within a group. C. When elements are alphabetized, there is a periodic pattern to their physical and chemical properties within a period. D. When elements are arranged in order of increasing atomic number, there is a recurring pattern to their physical and chemical properties. **my answer: D. is that right???

2. iheartfood

and i found this regarding #1: The periodic law states that if the elements are arranged by atomic number, there will be repeating patterns of the properties of the elements. so is my answer D?

3. jim_thompson5910

yeah that matches (kinda) what #2 said

4. iheartfood

#2: What is true of elements in a period on the periodic table? A. They have similar properties. B. They have similar names. c. They have different properties that show no pattern. D. They have different properties that repeat across the next period. ***i think it is either A or D... idk what do u think?

5. jim_thompson5910

the prev #2 anyway

6. jim_thompson5910

for this #2, i think it's A (like all the halogens are very flammable while all the noble gases don't react to anything)

7. iheartfood

okay, so my answers are: 1=D 2=A ??

8. jim_thompson5910

no

9. jim_thompson5910

10. jim_thompson5910

yeah, you're right on both

11. iheartfood

wait so my answer are or arent these? 1= D. When elements are arranged in order of increasing atomic number, there is a recurring pattern to their physical and chemical properties. 2=A. They have similar properties. ???

12. jim_thompson5910

you got it

13. iheartfood

ohhh ok thanks! :)