How many protons , electrons, and neutrons are contained in gallium-69?

Answers

Answer 1

Answer: In gallium-69, there are 31 protons, and and 31 electrons, if it is an atom of gallium-69. There are 38 neutrons as well.

Answer 2

Answer:

Final answer:

Gallium-69, an isotope of Gallium, contains 31 protons, 31 electrons and 38 neutrons.

Explanation:

Gallium-69 is a specific isotope of the element Gallium.Gallium is the element with atomic number 31 on the periodic table. This atomic number means that a Gallium atom has 31 protons in its nucleus. Given that in a neutral atom the number of electrons equals the number of protons, we can also deduce that Gallium-69 contains 31 electrons.

The number following the name of the element, 69 in this case, is the isotope's mass number, which is the total number of protons and neutrons that an atom of that isotope contains in its nucleus. To find the number of neutrons in Gallium-69, you simply subtract the number of protons from the mass number. This yields 69 - 31 = 38. Thus, Gallium-69 has 38 neutrons.

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Related Questions

A sample of aluminum metal absorbs 8.32 J of heat, upon which the temperature of the sample increases from 23.2 degrees C to 30.5 degrees C. Since the specific heat capacity of aluminum is 0.90 J/g-K, the mass of the sample is what in grams?
What will happen as an object receives energy due to heat flow? The molecules will move faster. The molecules will move more slowly.
Use the mole concept to calculate the number of atoms that are in a 1.75-mol sample of CHCl3.
What is the element Ar classified as in the periodic table?
An isotope undergoes radioactive decay by emitting radiation that has no mass. What other characteristic does the radiation have?a. some shielding required b. positive or negative charge c. low penetrating power d. no charge

Which statement defines calorimetry ?

Answers

Calorimetry is the measurement of the amount of heat exchanged in a system. It is a science in determining the changes in the energy of specific system. The equipment used for this is called a calorimeter.

The field of physics known as calorimetry determines how much heat is transferred during a chemical or physical process.

It requires precisely calculating the heat transport in a system using a calorimeter, a specialist tool. Two substances coming into contact at differing temperatures normally causes heat exchange to occur until thermal equilibrium is attained. The amount of heat transported can be determined by monitoring the temperature change and taking into account the individual heat capacity of the substances involved. Calorimetry has many uses, including figuring out how much energy is in food, researching chemical processes, and looking at the thermal characteristics of various materials. It is necessary to comprehend how energy is transformed in distinct systems.

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A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate this solid from the solution?

Answers

The appropriate response is filtration. Filtration is any of different mechanical, physical or organic operations that different solids from liquids by including a medium through which just the liquid can pass. The liquid that goes through is known as the filtrate

The correct answer would be "filtration". It's a process that has operations that separate solids from fluids. This is done simply by adding a medium through which only the fluid can pass. After the fluid passes through a certain medium it it's called a filtrate.

A 700.0 mL gas sample at STP is compressed to a volume of 200.0 mL, and the temperature is increased to 30.0 degrees Celsius. What is the new pressure of gas at kPa?

Answers

According to the ideal gas law, there is equation PV=nRT. So the same gas has the relationship of P1V1/T1=P2V2/T2. The unit of temperature is K. Then the answer is 385.4 kPa.

Final answer:

Using the combined gas law, we find that the new pressure of the gas sample, after it's compressed and heated, is approximately 353.8 kPa.

Explanation:

The subject of this question is gas laws, specifically the combined gas law which states that the ratio of the product of pressure and volume and the absolute temperature of a gas is constant. We apply this law to calculate the new pressure of the gas sample. Starting from the conditions of STP (Standard Temperature and Pressure, defined as 273.15 K and 1 atm i.e., 101.325 kPa), the volume of gas is decreased from 700.0 mL to 200.0 mL and the temperature is increased from 273.15 K to 30.0 degrees Celsius (or 303.15 K in absolute terms).

We set up the equation P1*V1/T1 = P2*V2/T2, where P1 = 101.325 kPa, V1 = 700.0 mL, T1 = 273.15 K, V2 = 200.0 mL, and T2 = 303.15 K. Plugging in these numbers and solving for P2 (the new pressure), we get P2 = P1*V1*T2 / (T1*V2) = 101.325 kPa * 700.0 mL * 303.15 K / (273.15 K * 200.0 mL) = approximately 353.8 kPa.

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Select the correct answer. Which missing item would complete this beta decay reaction?

Answers

Answer:

D. 33/16S please follow up me and give a thanks for my answer

Regarding the formula Al2O3 which of the following is accurate?A. The coefficient 3 indicates that there are a total of three atoms of oxygen present in the substance.
B. The subscript 2 indicates that two atoms of oxygen are present in the substance.
C. The chemical symbol Al indicates that oxygen is present in the substance.
D. The subscript 2 indicates that two atoms of aluminum are present in the substance

Answers

The question says,'regarding the formular Al2O3, which of the following is accurate. The correct option is D. The subscript indicate that there are two atoms of aluminium in the compound. The subscript 3 indicates that, there are three atoms of oxygen in the molecule. The figure 3 attach to oxygen is a subscript not a coefficient, that is why option A is not correct.

Final answer:

In the formula Al2O3, the subscript 2 indicates the presence of two atoms of Aluminium, and the subscript 3 indicates the presence of three atoms of Oxygen.

Explanation:

The formula Al2O3 is for aluminium oxide. The coefficient and subscript in this formula tell us about the number of atoms of each element present in the compound. In this case:

The chemical symbol Al indicates the presence of Aluminium.
The subscript 2 (in Al2) indicates that there are two atoms of aluminum present in the substance.
The chemical symbol O indicates the presence of Oxygen.
The subscript 3 (in O3) indicates there are three atoms of oxygen present in the substance.

So, the correct answer to the question is, the subscript 2 indicates that two atoms of aluminum are present in the substance (option D).

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According to Hess’s law, if a series of intermediate reactions are combined, the enthalpy change of the overall reaction isthe difference between the enthalpies of the intermediate reactions.
the sum of the enthalpy changes of the intermediate reactions.
the product of the enthalpy changes of the intermediate reactions.
the fraction of the individual enthalpies of the intermediate reactions.

Answers

Answer : The correct option is, the sum of the enthalpy changes of the intermediate reactions.

Explanation :

According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.

According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.

For example :

The formation reaction of CO will be,

$C(graphite)+(1)/(2)O_2(g)\rightarrow CO(g)$ $\Delta H_(formation)$