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lys-0071 [83]
3 years ago
8

✏️Draw diagrams: Either hand draw in the space below or edit using the drawing tool to create an electron dot diagram for each o

f the elements below. Use the Gizmo to help you do this. To check your work, turn on the Show electron dot diagram.✏️(Right Click on the picture, click “edit”, move the dots around the element symbols)
Chemistry
1 answer:
Phoenix [80]3 years ago
5 0

To create an electron dot diagram first identify the element the diagram is about and then use dots around the symbol of the element to represent the electrons.

Each atom includes three main sub-particles: protons, neutrons, and electrons. In regular atoms, the number of protons is equal to the number of electrons.

Moreover, it is common to represent the number of electrons using Lewis structure also known as dot diagram. To create a dot diagram follow these steps:

  • Find the symbol of the element and write it in the center. For example carbon = C or mercury = Hg
  • Determine the number of valence electrons or the electrons in the outer shell. For example, Chlorine has 7 valence electrons.
  • Represent the electrons with dots around the symbol. To do this, remember the dots are placed up, down, and to the sides of the symbol and you should draw only one electron at a time.

Note: This question is incomplete because the elements for the diagram are not provided; due to this, I answered this question based on general knowledge.

Learn more in: brainly.com/question/20300458

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How would exercising, sleeping well, eating healthy foods, and receiving recommended vaccines affect a person's immunity?
notsponge [240]
With the lack of these 3 factors you throw off your health triangle and your health is unbalanced. When you eat well you can get vitamins such as "E" and "C". These vitamins help build up immune cells that help build the immune system. When a person does not get enough sleep that person is more open to viruses and bacteria. Getting the recommended vaccines help you to fight off possible diseases or illnesses. They make you immune system stronger so you can be healthier.
6 0
4 years ago
Scientists have developed the Atomic Theory over a period of hundreds of years. What will help us further the development? A. in
stepladder [879]

Answer:

A. increasing the ability of technology, like microscopes, to see even smaller particles

8 0
4 years ago
Xenon forms several compounds with oxygen and fluorine. It is the most reactive non-radioactive noble gas because a. its large r
muminat

Answer:

d. its effective nuclear charge is lower than the other noble gases.

Explanation:

Xenon belongs to group O on the periodic table. Most of the elements here are unreactive.

Due to the large size of Xenon, the outermost electrons have very low effective nuclear charge. Effective nuclear charge is the effect of the positive charges of the nucleus on the electrons in orbits. This effect decreases outward as atomic shell increases.

Xenon has a very large atomic radius and there is weak a nuclear charge on the outermost electrons. The more electronegative elements would be able to attract some of its outermost electrons easily and form chemical bonds with xenon much more readily.

7 0
3 years ago
Describe the limitations of using models to represent atoms
morpeh [17]


Usually, a model is a depiction of a certain entity, never the real thing.  In times

past, many, many models look great on paper but are way off!

7 0
4 years ago
A sample of 0.3283 g of an ionic compound containing the bromide ion (Br−) is dissolved in water and treated with an excess of A
Pavel [41]

Answer:

92.49 %

Explanation:

We first calculate the number of moles n of AgBr in 0.7127 g

n = m/M where M = molar mass of AgBr = 187.77 g/mol and m = mass of AgBr formed = 0.7127 g

n = m/M = 0.7127g/187.77 g/mol = 0.0038 mol

Since 1 mol of Bromide ion Br⁻ forms 1 mol AgBr, number of moles of Br⁻ formed = 0.0038 mol and

From n = m/M

m = nM . Where m = mass of Bromide ion precipitate and M = Molar mass of Bromine = 79.904 g/mol

m = 0.0038 mol × 79.904 g/mol = 0.3036 g

% Br in compound = m₁/m₂ × 100%

m₁ = mass of Br in compound = m = 0.3036 g (Since the same amount of Br in the compound is the same amount in the precipitate.)

m₂ = mass of compound = 0.3283 g

% Br in compound = m₁/m₂ × 100% = 0.3036/0.3283 × 100% = 0.9249 × 100% = 92.49 %

4 0
4 years ago
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