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melamori03 [73]

3 years ago

6

An aluminum ion has a +3 charge. What change did the atom undergo to attain this charge?

1 answer:

lesya692 [45]3 years ago

8 0

When an ion loses electrons, it becomes a positive ion even though it does not lose protons. If there are more protons than electrons in the ion, the ion will have a positive charge.

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How do you decide which conversion factor to use?

Juliette [100K]

Answer:

When a conversion is necessary, the appropriate conversion factor to an equal value must be used. For example, to convert inches to feet, the appropriate conversion value is 12 inches equal 1 foot. To convert minutes to hours, the appropriate conversion value is 60 minutes equal 1 hour

Explanation:

hope this helps have a good night/day :) ❤

8 0

3 years ago

Select the more electronegative element in each pair.a.Cl or Fb.Se or Oc.N or Asd.Na or Mg

liubo4ka [24]

Answer:

The answer to your question is below

Explanation:

Electronegativity is a measure of how strongly atoms attract electrons to themselves.

Process

Look for the electronegativity of each element and compare.

a) Cl = 3.16 F = 3.98 Fluorine has a higher electronegativity

b) Se = 2.55 O = 3.44 Oxygen has a higher electronegativity

c) N = 3.04 As = 2.18 Nitrogen has a higher electronegativity

d) Na = 0.93 Mg = 1.31 Magnesium has a higher electronegativity

6 0

3 years ago

Diamonds are composed of __________ in a ___________lattice. A. silicon, trigonal planar B. quartz, octahedral lattice C. carbon

Nata [24]

Diamonds are composed of carbon in a tetrahedral lattice. That is option C.

<h3>What is a diamond?</h3>

A diamond of defined as an allotrope or one of the major forms of the element, carbon in nature.

These carbon atoms are arranged within the diamond in a face centered cubic tetrahedral lattice shape.

Therefore, Diamonds are composed of carbon in a tetrahedral lattice.

Learn more about carbon here:

brainly.com/question/19083306

#SPJ1

6 0

2 years ago

Read 2 more answers

The radioactive substance cesium-137 has a half-life of 30 years. The amount At (in grams) of a sample of cesium-137 remaining a

stealth61 [152]

<u>Answer:</u> The amount of sample left after 20 years is 288.522 g and after 50 years is 144.26 g

<u>Explanation:</u>

We are given a function that calculates the amount of sample remaining after 't' years, which is:

$A_t(t)=458\times (\frac{1}{2})^{\frac{t}{30}$

<u>For t = 20 years</u>

Putting values in above equation:

$A_t(t)=458\times (\frac{1}{2})^{\frac{20}{30}$

$A_t(t)=288.522g$

Hence, the amount of sample left after 20 years is 288.522 g

<u>For t = 50 years</u>

Putting values in above equation:

$A_t(t)=458\times (\frac{1}{2})^{\frac{50}{30}$

$A_t(t)=144.26g$

Hence, the amount of sample left after 50 years is 144.26 g

6 0

3 years ago

Hi can anyone answer these two distance and time questions

Likurg_2 [28]

1 is hours and 2 is meters

5 0

3 years ago