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Whitepunk [10]
3 years ago
10

What are these means in Periodic Table; Group Period Block

Chemistry
1 answer:
just olya [345]3 years ago
5 0
1. Group: Groups shows the number of valence electrons and are shown in columns on the periodic table.

2. Period: Periods show the number of energy levels each element has and are shown in rows on the periodic table (up and down).

3. Blocks are show the amount of orbitals each element has. There is an s block, d block, p block, and f block.
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A student fails to clean the pipet first. after delivering the vinegar sample, the student notices a drop of vinegar clinging to
VladimirAG [237]
This should not matter because the pipet has gradations and usually more of the sample is taken up in the pipette than what is delivered into the flask the student should always rinse the container being used because they are contaminating the sample if they do not clean it out
4 0
3 years ago
What are different type of plastids explain them?​
BARSIC [14]

Answer:

Explanation:

There are 3 types of plastids :-

1) Chloroplasts:- The green plastids which contain chlorophyll pigments for photosynthesis.

2) Chromoplasts:-The coloured plastids for pigment synthesis and storage.

3) Leucoplasts:- The colourless plastids for monoterpene synthesis found in non- photosynthetic parts of the plants.

They are of three types:-  

a) Amyloplasts- stores starch.

b) Proteinoplasts-  stores proteins.

c) Elaioplasts- stores fats and oils.

6 0
3 years ago
A condor has a wing span of 3.05 m. What is the wing span in feet
romanna [79]

Answer:

The condor has a wing span of 10 feet

Explanation:

This can be solved by a simple rule of three

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too. In this case, the rule of three is a cross multiplication.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease. In this case, the rule of three is a line multiplication.

In this problem, our measures are the wing span of the condon in meters and the wing span of the condor is feet. As the value of one of these measures increases, the other is going to increase too.

We know that 1m has 3.281 feet,

So we have the following rule of three:

1m - 3.281 feet

3.05m - x feet

x = 3.821*3.05

x = 10 feet

The condor has a wing span of 10 feet

3 0
3 years ago
Scientific predictions should be made from:
VladimirAG [237]

Answer:

studies

Explanation:

if they get plenty of studies then they get it

3 0
3 years ago
Hydrogen-3 (3h) carbon-14 (14c) oxygen-16 (16o) which isotope(s) would most likely undergo nuclear decay, and why? hint: hydroge
denis23 [38]
The correct answer will be:
<span>carbon-14 and hydrogen-3 would most likely decay because their neutrons and protons are not equal.
Due to atoms tend to decay when it has excess of either protons or neutrons
</span>
8 0
4 years ago
Read 2 more answers
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