Question

Which of the following is a characteristic of the lanthanides?

A. They are used in making fireworks.
B. They are all radioactive.
C. There are no known uses for the metals.
D. They are silvery metals that conduct electricity.

Answer 1

@aaronq

Answer 2

googled: "lanthanides properties"

"Properties. Like most metals, the lanthanides have a bright silvery appearance. Five of the elements (lanthanum, cerium, praseodymium, neodymium, and europium) are very reactive. When exposed to air, they react with oxygen to form an oxide coating tha.."

Answer 3

C

Answer 4

D?

Answer 5

C is not true, I used them in a project last year.

Answer 6

eh not sure don't know much about them i think it's C

Answer 7

oh nvm

Answer 8

I would say D cuz, A and B arent true

Answer 9

me too, thanks

Answer 10

Where are the transition metals on the periodic table?

A. In two rows, separated from the rest of the table
B. In the first column
C. In the second column
D. In columns 3 – 12 in the center of the table

Answer 11

D

Answer 12

they're in pink in this picture http://chubbyrevision-a2level.weebly.com/the-transition-metals.html

Answer 13

my school net wont let me go to it

Answer 14

Which of the following is a transition metal?

A. Bromine (Br)
B. Chromium (Cr)
C. Magnesium (Mg)
D. Aluminum (Al)

Answer 15

D?

Answer 16

chromium for sure don't you have a periodic table on you?

Answer 17

no i do not

Answer 18

get one ASAP no point in learning about the periodic table without a periodic table

Answer 19

google if you have to

Answer 20

ur right thanks

Answer 21

Which of the following is a characteristic property of the halogens?

A. They are very reactive.
B. They are all gases.
C. They are metals.
D. They are very stable.

Answer 22

a

Answer 23

I want to say B

Answer 24

Its' A isn't it?

Answer 25

i gtg

Answer 26

oh okay thanks for the help