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3 years ago

How is bohrs model of the atom arranged? where the protons? nuetrons? electrons?

2 answers:

5 0

The bohr model is arranged so there is a nucleus in the middle that holds the neutrons and protons. Around the nucleus, there is shells or energy levels that hold electrons in a formation of 2,8,8.

Bess [88]3 years ago

3 0

Answer:

protons and neutrons are in the nucleus

Explanation:

You might be interested in

Use the atom builder interactive to identify each nucleus. Two protons represented as purple spheres and one neutron represented

aleksandr82 [10.1K]

Answer:

$\frac{3}{2}He$

$\frac{6}{2} He$

$\frac{7}{4}Be$

$\frac{3}{1} H$

$\frac{6}{4}Be$

$\frac{7}{3} Li$

Explanation:

In the first nucleus we are told that there are two protons and one neutron. Let us remember that the mass number = number of protons + number of neutrons.

This implies that, for the first specie the mass number is 3, for the second specie the mass number is 6 and the third specie has a mass number of 7 and so on. The mass number is indicated as a superscript.

The atomic number is the number of protons in the nucleus of the atom and helps us to identify the atom. It is always written as a subscript as shown.

5 0

3 years ago

Predict what would happen to the strength of the electromagnet in each situation. using a battery with a higher voltage: wrappin

aalyn [17]

The the strength of an electromagnet varies with the quantity and direction of current as well as the number of turns in the coil.

<h3>What as is an electromagnet?</h3>

An electromagnet is a material which operates by the principle of electromagnetism.

Electromagnets possesses both electrical and magnetic properties.

The strength of an electromagnet is affected by the current, the number of turns as well as the material of the electromagnet.

The strength of the given electromagnet will be affected thus:

increases when using a battery with a higher voltage
decreases when wrapping the wire around the nail only three times
is unchanged when changing the direction of the current by reversing the battery connections
decreases when using a plastic stick in place of the iron nail
is greatest when holding the nail vertically rather than horizontally.

Therefore, the strength of an electromagnet is affected by current and number of turns in the coil.

Learn more about electromagnets at: brainly.com/question/12555869

#SPJ1

5 0

2 years ago

I am a metalloid. I am in the nitrogen family and row 4. I have an atomic mass of 74.92. I can be used as a poison. Who am I?

musickatia [10]

Arsenic

Arsenic has an atomic mass of 74.92, is a well known poison, and a metalloid.

6 0

3 years ago

Read 2 more answers

Which of the following solutions contains the greatest number of ions?

Elden [556K]

Answer : The correct option is, (A) 300.0 mL of 0.10 M CaCl₂

Explanation :

The dissociation reaction will be:

$CaCl_2(aq)\rightarrow Ca^{2+}(aq)+2Cl^-(aq)$

To calculate the number of moles of CaCl₂ as :

$\text{Moles of }CaCl_2=\text{Concentration of }CaCl_2\times \text{Volume of solution in L}$

$\text{Moles of }CaCl_2=0.10M\times 0.3L=0.03mol$

As, 1 mole of CaCl₂ contains ions = 3

So, 0.03 mole of CaCl₂ contains ions = 0.03 × 3 = 0.09 ions.

The dissociation reaction will be:

$NaCl(aq)\rightarrow Na^{+}(aq)+Cl^-(aq)$

To calculate the number of moles of NaCl as :

$\text{Moles of }NaCl=\text{Concentration of }NaCl\times \text{Volume of solution in L}$

$\text{Moles of }NaCl=0.10M\times 0.4L=0.04mol$

As, 1 mole of NaCl contains ions = 2

So, 0.04 mole of NaCl contains ions = 0.04 × 2 = 0.08 ions.

The dissociation reaction will be:

$FeCl_3(aq)\rightarrow Fe^{3+}(aq)+3Cl^-(aq)$

To calculate the number of moles of FeCl₃ as :

$\text{Moles of }FeCl_3=\text{Concentration of }FeCl_3\times \text{Volume of solution in L}$

$\text{Moles of }FeCl_3=0.10M\times 0.2L=0.02mol$

As, 1 mole of FeCl₃ contains ions = 4

So, 0.02 mole of FeCl₃ contains ions = 0.02 × 4 = 0.08 ions.

<u>(d) 800.0 mL of 0.10 M sucrose</u>

The dissociation of sucrose is not possible because it is a non-electrolyte.

To calculate the number of moles of sucrose as :

$\text{Moles of }sucrose=\text{Concentration of }sucrose\times \text{Volume of solution in L}$

$\text{Moles of }sucrose=0.10M\times 0.8L=0.08mol$

As, 1 mole of sucrose contains ions = 1

So, 0.08 mole of sucrose contains ions = 0.08 × 1 = 0.08 ions.

Hence, the solutions contains the greatest number of ions is, 300.0 mL of 0.10 M CaCl₂

3 0

3 years ago

Use the naming conventions to complete the following formula-name pairs of binary acids. Match the acid names and chemical formu

ohaa [14]

Answer:

This looks like a hard question for me is this biology

Explanation:

6 0

3 years ago