All categories

3 years ago

Why do the elements in a group all behave similarly

Chemistry

1 answer:

Svetradugi [14.3K]3 years ago

6 0

Answer:

See the explanation below, please.

Explanation:

The elements of the periodic table that belong to the same group (each column) have similar physical and chemical properties. This is because they have the same number of electrons in their last electronic layer.

Example of electronic configuration of elements of GROUP IA:

Hydrogen: 1s ^ 1

Lithium: 1s ^ 2 2s ^ 1

You might be interested in

Explain how a cell is like your school or town. What is the nucleus of your town? The mitochondria?

Mariulka [41]

Answer:

The nucleus is like the mayor's office because it controls what happens in the cell. The mitochondria is the powerhouse of the cell because it gives the rest of the cell energy to perform the tasks they need to do.

Explanation:

4 0

3 years ago

What does the chemical formula cacl2 show about the compound it represents?

Anna [14]

A chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound.

7 0

3 years ago

Read 2 more answers

Iron (Fe) has three isotopes. Calculate the average atomic mass of the element Fe using the following data: Isotope atomic mass

Maksim231197 [3]

Answer:

Average atomic mass = 55.83 amu

Explanation:

The formula for the calculation of the average atomic mass is:

$Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})+(\frac {\%\ of\ the\ third\ isotope}{100}\times {Mass\ of\ the\ third\ isotope})$

Given that:

For first isotope, Fe-54:

% = 6 %

Mass = 53.94 amu

For second isotope, Fe-56:

% = 92 %

Mass = 55.93 amu

For third isotope, Fe-57:

% = 2 %

Mass = 56.94 amu

Thus,

$Average\ atomic\ mass=\frac{6}{100}\times {53.94}+\frac{92}{100}\times {55.93}+\frac{2}{100}\times {56.94}$

<u>Average atomic mass = 55.83 amu</u>

5 0

2 years ago

What product(s) are formed during this chemical reaction? (Will be two answers)

lianna [129]

Answer:

BK. BK. BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK

3 0

3 years ago

Safurared Solution changes into Unsaturated<br>by heating

natima [27]

Answer:

Yes it is because heating expands molecules of solution which helps to form a solution as it acts as solvent solution.

Explanation:

7 0

2 years ago