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Ratling [72]
3 years ago
14

The radius of an atom is closest in size to a

Chemistry
1 answer:
tigry1 [53]3 years ago
3 0

Answer:

The size of an isolated atom can't be measured because we can't determine the location of the electrons that surround the nucleus. We can estimate the size of an atom, however, by assuming that the radius of an atom is half the distance between adjacent atoms in a solid. This technique is best suited to elements that are metals, which form solids composed of extended planes of atoms of that element. The results of these measurements are therefore often known as metallic radii.

.Explanation:

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Light shining on a strip of metal can dislodge electrons. Do you think this is more consistent with light being made up of waves
Gnoma [55]
Light would be more consistent being made up of particles rather than waves.
7 0
3 years ago
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Tony recorded data from his chemistry experiment in the following table. Sample Color Volume Temperature Mass A yellow 150 mL 20
siniylev [52]

Color

Explanation:

Only color out of the listed observations is the qualitative observation. Qualitative observations are usually carried out using our senses.

  • Sense of touch makes us feel the texture of particular subject.
  • Sense of smell gives different types of scents and odors.
  • Sense of sight helps us to identify different colors and appearances in a study.
  • Sense of taste helps to know if something is bitter, sweet or sour.
  • Sense of hearing helps to know how audible something it.

Qualitative observations does not involve the use of numbers.

Learn more:

observations brainly.com/question/5096428

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6 0
3 years ago
Cuál es la importancia de una fórmula química y explique las clases de fórmulas con sus ejemplos respectivos.
Ksenya-84 [330]

Answer and Explanation:

Las fórmulas químicas sirven para conocer qué elementos químicos y en qué cantidad están presentes en un compuesto químico. Por ejemplo: la fórmula química del dióxido de carbono es CO₂. Esta fórmula nos indica que la molécula de dióxido de carbono está formada por 1 átomo del elemento químico carbono y 2 átomos del elemento oxígeno.

Los diferentes tipos de fórmulas químicas son: fórmula empírica, fórmula molecular, fórmula semi-desarrollada y fórmula desarrollada. Tomando como ejemplo al compuesto <em>butano</em>:

- Fórmula empírica: C₂H₅ (indica que hay 2 átomos de C por cada 5 átomos de H; es una fórmula mínima)

- Fórmula molecular: C₄H₁₀ (indica que en realidad cada molécula de butano tiene 4 átomos de C y 10 átomos de H).

- Fórmula semi-desarrollada: CH₃CH₂CH₂CH₃ (indica el órden en que se unen los átomos en la molécula).

-Fórmula desarrollada: ver dibujo adjunto (indica cómo están unidos los átomos dentro de la molécula. Ahora vemos los enlaces entre los átomos y que los 2 átomos de C de los extremos están unidos a 3 átomos de H y a otro C, y los dos átomos de C del medio están unidos cada uno a 2 C y 2 H).

8 0
2 years ago
The current scientific verdict on the phlogiston theory demonstrates which two of the following principles?
masha68 [24]

Answer:

The two valid principles are:

  • Scientific theories can be replaced by better theories.
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Explanation:

The scientific knwoledge is not inmutable; it may (and does) change with new discoveries.

In fact, scientific theories cannot be proved right, instead they are constantly tested to try to  disprove them. This is what the principle that theories are falsiable means.

As long as a scientific theory is not disproved it remains valid, but new discoveries may lead, eventually, to its disprovement.

Scientific knowledge evolves because new procedures, new technologies, and new evidence leads to a better understanding and better explanations.

5 0
3 years ago
Given the formulas for the ionic compounds, draw the correct ratio of cations to anions (a) BaSO4, (b) CaF2, (c) Mg3N2, (d) K2O.
Karolina [17]

Answer:

A. It formed by barium(Ba+2) ion and sulfate ( SO42- )

B. It is formed by calcium ion (Ca+2) and two fluoride ions (2F-)

C. It is formed by magnesium ion (Mg+2) and nitride ion (N3-)

D. It is formed by two potassium ions (2 K+) and oxide ion(O2-)

3 0
3 years ago
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