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2 years ago

What is the purpose of the stairstep pattern on the periodic table of the elements?

Chemistry

1 answer:

Mamont248 [21]2 years ago

7 0

Answer: The bold staircase in the periodic table allows us to classify which elements are metalloids.

Explanation: Additionally, it acts like a "divider" that allows us to properly distinguish the metals from the non-metals in the periodic table.

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What is the purpose of sodium and chloride ions in the exoeruent?

Klio2033 [76]

What is the exoeruent. Searched it up on google and only came up with two search results. None related to chemistry

5 0

2 years ago

Humans have three types of cone cells in their eyes, which are responsible for color vision. Each type absorbs a certain part of

harkovskaia [24]

Answer:

The frequency of this light is $6.98\times 10^{14} s^{-1}$ .

Explanation:

Wavelength of the light = $\lambda = 430 nm=4.30\times 10^{-7} m$

Speed of the light = c = $= 3\times 10^8 m/s$

Frequency of the light = $\nu$

$\nu =\frac{c}{\lambda }$

$\nu =\frac{3\times 10^8 m/s}{4.30\times 10^{-7} m}=6.98\times 10^{14} s^{-1}$

The frequency of this light is $6.98\times 10^{14} s^{-1}$ .

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3 years ago

Write the electron configuration for a sodium cation with a charge of 1+

Dafna1 [17]

$1{s}^{2} 2 {s}^{2} 2 {p}^{6}$

or simply 2,8 it is isoelectronic with argon

4 0

3 years ago

Velocity , Both , Or Acceleration??

ycow [4]

Acceleration is the rate of change and is constantly positive

The answers for Acceleration:
m/s^2
Change in velocity over change in time

Velocity is the speed of the object but also involves direction can be both negative and positive

The answers for Velocity:
m/s
Can be positive or negative
Change in displacement over change in time

Both Acceleration and Velocity:
A rate of change

8 0

2 years ago

Bromination occurs on alkene functional groups, but NOT on alkenes found within aromatic functional group, such as the phenyl ri

liq [111]

Answer:

When cinnamic acid react with bromine ,addition reaction rapidly occur on alkene functional group to form dibromo product

Explanation:

Phenyl ring is an aromatic hydrocarbon ,when aromatic hydrocarbons react with Cl2,Br2 or KMnO4 no reaction occur ,where as unsaturated hydrocarbon like alkene react .Aromatic hydrocarbon with these reagents undenr different conditions undergoes subtituition reaction.They react with bromine in presence of lewis acid catalyst ferric bromide.

8 0

3 years ago