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OleMash [197]
3 years ago
15

Explain the difference between periods and groups and what each tells you about the atom

Biology
2 answers:
Pie3 years ago
7 0
A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. ... A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.
Rasek [7]3 years ago
4 0

Answer:

Groups and periods are two ways of categorizing elements in the periodic table. Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

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A paper mill located on a coastal region of Florida experienced an
Temka [501]

Answer: The state wants to see if the spill will have a continued impact on biodiversity.

Explanation: I am not entirely sure, use this as your last resort.

4 0
3 years ago
Which of the following would most likely cause increases in predator population within an ecosystem?
Juli2301 [7.4K]
C. Fewer herbivores
6 0
3 years ago
Four students provide their teacher with an explanation of why photosynthesis is considered a chemical change. Luke: Photosynthe
kenny6666 [7]

Answer:

The best explanation was provided by the student Tara who said: "Through photosynthesis, the CO2 and water are changed into new substance, glucose, therefore it is considered a chemical change".

Explanation:

A chemical change is one which is not easily reversible and which results in the formation of new subsatances.

For example, in photosynthesis,a new substance, glucose is formed from the original substansubstances, carbon dioxide and water. Also, the reverse process of the formation of carbon dioxide and water from glucose is not easily obtained in plants.

From explanations provided by the students :

Luke does not give any explanation of the process but only an observation

Jackie's explanation does not state the main reason why a chemical change differs from a physical one.

Tara, gives the best explanation as the reason why a change that occcured is a chemical change is clearly stated.

Skyler does not state the main reason why photosynthesismis a chemical change as well, because even physical changes like evaporation of water involves solar energy.

6 0
3 years ago
Which of the components could be observed using a microscope in a prepared slide of leaf epodermal cells but not in a preoared s
Jlenok [28]

<u>Answer:</u>

<em>Chloroplasts and Cell wall are the components which could be observed using a microscope</em><em> in a prepared slide of a leaf epidermal cells not in a prepared slide of himan cheek cells.</em>

<u>Explanation:</u>

<em>Chloroplasts is commonly known as a plastid which are contained in plants.</em> Chloroplasts contains chlorophyll and in the process photosynthesis is processed.

Cell wall is generally known for the surrounding of the cell as a border. <em>Cell wall is located just outside the cell membrane. </em>

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4 years ago
Which places the types of clouds in correct order from most thick and puffy, to most thin and wispy?
Andru [333]
The answer is B I am positive that’s correct
5 0
4 years ago
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