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Eddi Din [679]
3 years ago
14

A lithium atom has positively charged protons and negatively charged electrons. The sum of the charges represents the charge of

the lithium atom. Find the charge of the atom
Mathematics
1 answer:
MissTica3 years ago
7 0
At its neutral state, an element has equal number of protons and electrons. If not, they occur as ions. The most stable elements are the noble gases. The nearest noble gas to Lithium is Neon, which is one proton lower than Lithium. Hence, when Lithium has a charge, it is naturally +1 because it has to give one electron to be as stable as Neon.
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Please help!!!<br><br> i've tried to search to understand but they all look so similar
kirza4 [7]

Answer:

Since dilation is not mentioned in the answer options, thus, the correct option is 'None of the above'.

Step-by-step explanation:

We know that when an object is dilated by a scale factor, it gets reduced, stretched, or remains the same, depending upon the value of the scale factor.

  • If the scale factor > 1, the image is enlarged
  • If the scale factor is between 0 and 1, it gets shrunk
  • If the scale factor = 1, the object and the image are congruent

The figure seems to have enlarged by a certain scale factor. Thus, the figure b is a result of dilation of the original figure by a certain scale factor.

Rotation, Reflection, and translation do not affect the size of the original figure.

Since dilation is not mentioned in the answer options, thus, the correct option is 'None of the above'.

5 0
2 years ago
How do you use benchmark to estimate 2.81 + 3.72
Luba_88 [7]
Round 2.81 to 2.8 and 3.72 to 3.7. Add both together to get 6.5
7 0
3 years ago
What is the value of p?<br><br> A) 55<br><br> B) 45<br><br> C) 35<br><br> D) 125
Margarita [4]

Answer:

35

Step-by-step explanation:

just subtract 125 and 99

7 0
3 years ago
Which is an equation of a circle with center (-5, -7) that passes through the point (0, 0)?
german
Hello,

Let's calculate the radius:

r²=5²+7²=74

The circle's equation is (x+5)²+(y+7)²=74

Answer C
5 0
3 years ago
Read 2 more answers
Write the expression in expanded form that is equivalent to 3(7d +4e)
pickupchik [31]

Answer:

21+4

Step-by-step explanation:

3 times 7=21

3 times4=12

21d+4e

4 0
2 years ago
Read 2 more answers
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