6. Arsenic has a silver-grayish luster and is brittle at...

6. Arsenic has a silver-grayish luster and is brittle at room temperature. It is used as a semiconductor in various electronic devices. Based on this information and its position on the periodic table, arsenic is classified as what type of element? A) Main-group metal B) Transition metal C) Inner transition metal D) Nonmetal E) Metalloid

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Transcript

00:01 So i have a generic periodic table here, and we need to classify some elements.

00:06 But before we do, it's helpful that i give you a guide to tell you which of these elements are metals, which are non -metals, and which are metalloids.

00:17 One thing that you do really need to know is that this diagonal line, roughly, are metalloids.

00:30 I'm not aware of the specific term right now, but there are only, there are very few elements that are actually metalloids, and those elements are boron, silicon, these, and ethnic.

00:59 So these are all metalids, right? the blue is for metaloid.

01:10 All of these, on the right side of the metalloids are non -metals, and this also includes.

01:23 Hydrogen and everything else, literally everything else, are metals.

01:41 So if you have a periodic table, it's good to mark these elements with this info if it's not marked already.

01:49 And with that, let's move on to actually answering our questions.

01:53 So the first one, molybdenum, that's how you spell it.

02:04 That's how you spell it.

02:05 So melvdenum, atomic symbol, m .o.

02:08 Take a look at the periodic table, it's right around here, and it falls into metals.

02:17 So we know it's a metal.

02:24 The second one, second element is bromine, symbol br.

02:37 Bromene is right here in the non -metal category...

Question

Please give Ace some feedback