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4 years ago

Summarize how the periodic table is organized, use the worlds period and group

Chemistry

1 answer:

ludmilkaskok [199]4 years ago

3 0

Answer:

The periodic table is organized into groups (columns) and periods (rows).

Explanation:

The periodic table is organized into groups (columns) and periods (rows). The first ones contain those elements that have the same valence and have similar characteristics to each other. Example: group IA have valence 1 (they require 1 electron to reach the octet). The exception to this are the noble gases located in the last group to the right of the table, which have already filled their last energy level.

Periods have elements that have the same number of orbitals and have different properties; although the masses are similar.

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A student was asked to determine the densities of the four metals listed. The student was asked to determine the density of an u

Iteru [2.4K]

Answer:

D is correct

Explanation:

because

we know that

density of lead is 11.36 g/cm3

and

density of tin is 7.31 g/cm3

so..

density of alloy by mixing 50/50

=(11.36+7.31)/2 g/cm3

=18.67/2 g/cm3

=9.33 g/cm3

5 0

4 years ago

The metric system of units is known as

andre [41]

Answer:

International System of Units (SI)

Explanation:

I hope it helps :)

6 0

3 years ago

The name for Na2 O in chemistry

IgorC [24]

Pretty sure it’s sodium oxide.. ?

5 0

4 years ago

Which of the following is an example of a chemical change? A. melting solid gold B. burning hydrogen gas C. breaking a sheet of

cestrela7 [59]

The answer is B. Burning hydrogen gas

5 0

3 years ago

How are cone bearing trees and static electricity connected

Pavlova-9 [17]

Answer: Static electricity will help in seed dispersal in cone bearing seeds.

Explanation:

Static electricity is the stationary electric charge produced by the friction. The static electricity can be produced by the turbulence or air currents in the storm clouds. This is responsible for the cause of lightening phenomena.

The cone bearing seeds exhibit cones that are hard and woody in nature. The static electricity due to the effect of lightening generate electrical shock which breaks open the cone and disperse the seeds. Thus the static electricity is important for seed dispersal in cone bearing trees.

5 0

3 years ago