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sp2606 [1]
3 years ago
9

When an atom gives off energy in the form of light, a. it becomes excited. b. it becomes more stable. c. it returns to ground st

ate. d. both b & c e. none of the above.
Chemistry
1 answer:
egoroff_w [7]3 years ago
6 0
Answer is only B.
<span>it becomes more stable</span>

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The table lists properties of a few known elements, but the states of matter and melting points are missing. Look up the element
kolbaska11 [484]

The properties of the given elements are as follows:

Potassium, K;

  • State of matter: Solid
  • Melting point: 63.5 °C
  • Conductivity: Good
  • Solubility (H2O): reacts rapidly with water

Iodine, I;

  • State of matter: solid
  • Melting point: 113.5 °C
  • Conductivity: very poor
  • Solubility (H2O): negligible

Gold, Au;

  • State of matter: solid
  • Melting point: 1064 °C
  • Conductivity: excellent
  • Solubility (H2O): none

Germanium, Ge;

  • State of matter: solid
  • Melting point: 938.2 °C
  • Conductivity: fair
  • Solubility (H2O): none

Barium, Ba;

  • State of matter: solid
  • Melting point: 727 °C
  • Conductivity: good
  • Solubility (H2O): reacts strongly

Argon, Ar;

  • State of matter: gas
  • Melting point: -189.4 °C
  • Conductivity: none
  • Solubility (H2O): negligible

Chlorine Cl;

  • State of matter: gas
  • Melting point: -101.5 °C
  • Conductivity: poor
  • Solubility (H2O): slight

Rubidium, Rb;

  • State of matter: solid
  • Melting point: 39.48 °C
  • Conductivity: good
  • Solubility (H2O): reacts violently

Silver, Ag;

  • State of matter: solid
  • Melting point: 961.8 °C
  • Conductivity: excellent
  • Solubility (H2O): none

Calcium, Ca;

  • State of matter: solid
  • Melting point: 842 °C
  • Conductivity: good
  • Solubility (H2O): reacts

Silicon, Si;

  • State of matter: solid
  • Melting point: 1,410 °C
  • Conductivity: intermediate
  • Solubility (H2O): none

Xenon, Xe;

  • State of matter: gas
  • Melting point: -111.8 °C
  • Conductivity: very poor
  • Solubility (H2O): none

<h3>What are elements?</h3>

Elements are pure substances which are composed of similar atoms.

Elements are defined as substances which cannot be split into simpler substances by an ordinary chemical process.

Elements have different physical and chemical properties and can be classified into:

  • metals
  • semi-metals
  • non-metals

In conclusion, the physical and chemical properties of the elements vary from metals to non-metals.

Learn more about elements at: brainly.com/question/6258301

#SPJ1

7 0
1 year ago
A sample of lead has a density of 11.3 g/cm3 and a mass of 123 grams, what is the volume of the sample?
SVEN [57.7K]

Answer:

The answer is

<h2>11.18 cm³</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question

mass = 123 g

density = 11.3 g/cm³

The volume is

volume =  \frac{123}{11.3}   \\  = 11.18181818...

We have the final answer as

<h3>11.18 cm³</h3>

Hope this helps you

3 0
3 years ago
Which best describes a difference between energy transformation in power plants and dams?
gogolik [260]

Answer:

Which best describes a difference between energy transformations in power plants and dams? Only power plants use fossil fuels to transform energy. Only dams use fission to generate thermal energy. ... Only dams use mechanical energy to produce electricity.

Explanation:

HOPE THIS HELP

PICK ME AS THE BRAINLIEST

6 0
3 years ago
What is a physical property of milk
Fiesta28 [93]
A thick liquid could be one property or its white.....
6 0
3 years ago
Water from a riverbed carries sediment downstream. The water pressure cuts deep into the riverbed, creating a deep, narrow chann
atroni [7]

Answer:

A canyon has formed.

Explanation:

5 0
2 years ago
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