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3 years ago

In what way are elements in the same column of the periodic table

Chemistry

2 answers:

andrew11 [14]3 years ago

4 0

You can see wich group by the last out shell. Group 1 has 1 electron in the outershell

12345 [234]3 years ago

3 0

The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.

Hope this helps. :)

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2. Reaction between magnesium & sulphur

diamong [38]

Answer:

Mg combines with SO2 to create MgO and S. When magnesium ribbon is burned in a sulphur dioxide-rich environment, the element magnesium reacts with the oxygen atom in the sulphur dioxide and burns constantly. This is a redox reaction (oxidation-reduction). Mg is a reducing agent, while SO2 is an oxidising agent.

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2 years ago

Read 2 more answers

How do birth and death rates affect a population size?

yawa3891 [41]

Answer:

When the death rate is higher than the birth rate, the population decreases. It increases when the opposite happens.

Explanation:

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2 years ago

If an electromagnetic wave has a frequency of 4.5 x 10^18 Hz, what is its wavelength? The speed of light is 3 x 108 m/s.

Mekhanik [1.2K]

Answer:

Wavelength, λ = 6.7 x 10^-11 m

Explanation:

Frequency and wavelength are inversely proportional to each other.

In this problem;

f = 4.5 x 10^18 Hz

wavelength, λ = ?

Speed of light, c = 3 x 108 m/s.

These variables are related by the following equation;

c = λ * f

Making λ subject of focus, we have;

λ = c / f

λ = 3 x 10^8 / 4.5 x 10^18

λ = 0.67 x 10^-10

λ = 6.7 x 10^-11 m

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2 years ago

30 POINTS!!!!Now calculate the specific gravity of the rose quartz. The procedure is as follows: Remember, the density of water

grin007 [14]

Density--1.0g/cm3
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2 years ago

A compound with molecular formula C6H9No that has an amide functional group and does not have an alkene group

Flauer [41]

Answer:

Following are the responses to the given question:

Explanation:

$\to C_6H_9NO$

calculating the HOI:

$= \frac{2C+2+N-H-X}{2} \\\\ =\frac{2\times 6+2+1-9-0}{2}\\\\ =\frac{12-6}{2}\\\\=\frac{6}{2}\\\\=3$

So, in the above compund there are three bounds or we can say that one is double and two bound is single.

Please find the attachment file of the Function group:

In the above given conditon compound doesn't include the alkene functional group that is absense of $-C=C-$ , and compound include $-C\equiv C-$ So, please find the attached file of the structure of the compound:

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2 years ago