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avanturin [10]
3 years ago
8

As the atomic number ___________(Increases/Decreases) within a period, the atomic radius _______(Increases/Decreases).

Chemistry
1 answer:
Alex777 [14]3 years ago
3 0

Answer:

Atomic radius is the distance from the atom's nucleus to the outer edge of the electron cloud. In general, atomic radius decreases across a period and increases down a group.

Explanation: you should mark me brainliest

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alina1380 [7]

Answer:

Sodium

(Na)

Just count the electrons and search which atom it is.

7 0
3 years ago
Which are characteristics of a prokaryotic cell? Select three options.
Lostsunrise [7]

Answer:

Contains DNA, Contains Ribosomes, Lacks a nucleus

Explanation:

4 0
3 years ago
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Block mountains form along which type of geological landform?
ozzi

Answer:

A. Fault blocks

Explanation:

The block mountains are formed by pieces of the crust that breaks down and pieces are pushed up by the movement of the crust around them.  These type of mountains usually have a steep and a slope side, due to the irregular nature of the fracture.  Example of such mountains are the Sierra Nevada mountains in North-America.

<u>They're not caused by the collision of two tectonic plates</u>, like most of the mountains of our planet.

5 0
4 years ago
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An intravenous infusion is to contain 15 mEq of potassium ion and 20 mEq of sodium ion in 500 mL of 5% dextrose injection. Using
Studentka2010 [4]

Answer:

To supply the required ions it is necessary to inject 5,6mL of 6g/30mL solution and 131,1 mL of 0,9% solution.

Explanation:

1mEq of sodium are 59mg of NaCl and 1mEq of potassium are 75mg KCl

in intravenous infusion 15 mEq of K are:

15x75mg KCl = 1,125g of KCl

And 20 mEq of Na are:

20x59mg NaCl = 1,18g of NaCl

To supply the potassium ion it is necessary to inject:

1,125g of KCl×\frac{30mL}{6g} =<em> 5,6mL  of 6g/30mL solution</em>

And, to supply the sodium ion it is necessary to inject:

1,18g of NaCl×\frac{100mL}{0,9g} = <em>131,1 mL of 0,9% solution</em>

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I hope it helps!

6 0
4 years ago
Which TWO substances are among the six most abundant elements in living things.
Stels [109]

Answer:

B) nitrogen

Explanation:

bc i searched it up

7 0
3 years ago
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