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zvonat [6]
2 years ago
9

What is the atomic number of Argon​

Chemistry
1 answer:
Marianna [84]2 years ago
5 0

Answer:

18

Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas.

Explanation:

hope the answer was helpful......

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What can you tell by tracking oxidation numbers?
Alla [95]

<u>Answer</u>:

By tracking oxidation numbers we can identify the number electron in the atom

<u>Explanation</u>:

Tracking of electrons helps us to know when and how many electrons get transferred from one atom to other atom . Oxidation  referred as the “loss of one or more electrons” by an atom. When the oxidation number of an element increases, there is a loss of electrons and that element is being oxidized. Oxidation numbers are usually written with the sign (+plus or −minus) followed by the magnitude, which is the opposite of charges on ions. In their elemental stage oxidation number of an atom is zero.  

7 0
3 years ago
A substance has a mass of 360 g and a volume of 7.5 cm3. What is its density?
a_sh-v [17]
D = g / cm³

Density = mass / volume

D = 360 g / 7.5 cm³

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answer D

hope this helps!
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3 years ago
What is the difference between sexual and asexual reproduction
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Asexual reproduction takes/or inherits one parent's genes, because it only involves one organism.
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4 0
2 years ago
Write this number in standard notation.<br> 1.986 x 10negative exponent 6 or 1.986 x 10^6
Brums [2.3K]

Answer:

0.000001986

Explanation:

We have the number 1.986*10^{-6}. Standard notation would basically be this number without the 10^{-6} part.

To get rid of this part, we need to move the decimal point 6 places to the left (we go left because it's negative 6, indicating division).

So, when we move the decimal point 6 places to the left, the resulting number is: 0.000001986, with 5 zeros after the decimal point before a nonzero number.

Thus, the answer is 0.000001986.

7 0
3 years ago
Whatis the SI unit used by chemists to measure the amount of an element or substance
Harman [31]
The answer is Mole, but send me a message if you need the equation for how to get it
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2 years ago
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