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earnstyle [38]
3 years ago
14

How many protons are in an element with an atomic number of 8 and a mass number of 18?

Mathematics
2 answers:
Orlov [11]3 years ago
8 0
A)8,atomic number also means proton number
aleksandrvk [35]3 years ago
4 0
Since the atomic number is 8 that will be the number of protons given that the element is a neutral element meaning that the number of protons and electrons are the same. Therefore the answer is 8
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What ya the value of k? <br> A<br> B<br> C<br> D
sveta [45]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Angles on a straight line equal 180 degrees:

5k - 3 + 9 + k = 180

Simplify:

6k + 6 = 180

Subtract 6 from both sides:

6k = 174

Divide both sides by 6:

k = 29

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

7 0
4 years ago
I just need reassurance
iVinArrow [24]

Answer:

i believe the answer is 286°

Step-by-step explanation:

a minor arc=to the central angle's measure.

a circle has 360°

so 360-74=286

3 0
3 years ago
What is the quotient of a number and 5​
KengaRu [80]

Sorry but that's an unclear question, can you double check to see if you included everything, and also check to see the possible answers?

3 0
3 years ago
What does subsequent mean
Olenka [21]
Subsequent means following (in time, order or place f.e.)
6 0
3 years ago
Victor Malala has a net income of $1240.00 per month. If he spends $150.00 on food, $244.00 on a car payment, $300.00 on rent, a
Nady [450]
Net Income: I=$1,240.00
Food: F=$150.00
Car payment: C=$244.00
Rent: R=$300.00
Saving: S=$50.00
Other things: O=?

F+C+R+S+O=I
$150.00+$244.00+$300.00+$50.00+O=$1240.00
Solving for O:
$744.00+O=$1240.00
$744.00+O-$744.00=$1240.00-$744.00
O=$496.00

Percent of his net income Victor can spend on other things: P=?
P=(O/I)*100%
P=($496.00/$1240.00)*100%
P=(0.40)*100%
P=40%

Answer: 40% of his net income Victor can spend on other things.


3 0
3 years ago
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