All categories

3 years ago

Which list of symbols represents nonmetals, only?

Chemistry

1 answer:

Trava [24]3 years ago

6 0

The list of symbols that represents non metal is P ,S , Cl (answer 4)

Explanation

Non metals are are chemical element that do not have the characteristic of the metals. for example ability to conduct electricity.

List 4 elements that is P ( phosphorous), S (sulfur) and Cl (chlorine) are non metals.

In list 1 , boron(B) is metalloid) while Ga and Al a metal.

In list 2, Li and Be are metals.

In list 3, C is a non metal while Si and Ge are metalloid

You might be interested in

What's the IUPAC name pf this compound? CH3-CH-CH2-CH-CHO | | CH3 CL

Svetradugi [14.3K]

Answer:

2-chloro-4-methylpentanal.

Explanation:

Hello there!

In this case, according to the chemical compound:

CH3-CH-CH2-CH-CHO

| |

CH3 Cl

We can see the main functional group is an starting carbonyl, which means this is an aldehyde. Moreover, we can see a Cl-substituent on the second carbon and a methyl substituent on the fourth carbon. Therefore, the IUPAC name turns out: 2-chloro-4-methylpentanal.

Best regards!

8 0

3 years ago

According to Newton's Third Law, If one object exerts a force on a second object, the second object exerts a force on the first

blagie [28]

Equal in magnitude and opposite in direction.

3 0

3 years ago

A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal a

weeeeeb [17]

A. o. I know gamma can I Hope this helps

A now i remember yeah gamma only

4 0

3 years ago

Read 2 more answers

Determine the expected diffraction angle for the first-order diffraction from the (111) set of planes for FCC nickel (Ni) when m

faust18 [17]

Answer:

56°

Explanation:

First calculate $a:$

$a=2 R \sqrt{2}=2(0.1246) \sqrt{2}=0.352 \mathrm{nm}$

The interplanar spacing can be calculated from:

$d_{111}=\frac{a}{\sqrt{1^{2}+1^{2}+1^{2}}}=\frac{0.352}{\sqrt{3}}=0.203 \mathrm{nm}$

The diffraction angle is determined from:

$\sin \theta=\frac{n \lambda}{2 d_{111}}=\frac{1(0.1927)}{2(0.2035)}=0.476$

Solve for $\theta$

$\theta=\sin ^{-1}(0.476)=28^{\circ}$

The diffraction angle is:

$2 \theta=2\left(28^{\circ}\right)=56^{\circ}$

4 0

4 years ago

Which postulate of Dalton's atomic model was later changed and why?

telo118 [61]

Answer:

Explanation:

Part two of Dalton's theory had to be modified after mass spectrometry experiments demonstrated that atoms of the same element can have different masses because the number of neutrons can vary for different isotopes of the same element. ... Scientists have even developed the technology to see the world on an atomic level!

hoped i helped you :)

4 0

3 years ago