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-Dominant- [34]
3 years ago
13

Look at the diagram of the atom. What will it change to during beta decay? A)An atom with 3 protons, 4 neutrons, and 3 electrons

B)An atom with 3 protons, 4 neutrons, and 4 electrons C)An atom with 4 protons, 3 neutrons, and 4 electrons D)An atom with 4 protons, 3 neutrons, and 3 electrons

Chemistry
1 answer:
GREYUIT [131]3 years ago
5 0
D) An atom with 4 protons, 3 neutrons, and 3 electrons
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If a proton is added to the nucleus of germaium what out comes would acure
r-ruslan [8.4K]
When a proton is added to the germanium nucleus, then its atomic number becomes 33, which is the atomic number of arsenic.

HOPE THIS HELPS YOU!!!!
3 0
2 years ago
What is the molarity of a solution with 2 moles of HCl in 2000 mL?
ikadub [295]

Answer:

"1 M" will be the right solution.

Explanation:

The given values are:

Number of moles,

= 2 moles

Volume of solution,

= 2000 mL

or,

= 2 L

Now,

The molarity of the solution will be:

=  \frac{Moles}{Liters}

On substituting the values, we get

=  \frac{2}{2}

=  1 \ M

7 0
3 years ago
A mixture results in a ___________________________ change.
Allisa [31]

Answer:

physical

Explanation:

8 0
3 years ago
+
Alex

Answer: 0.714 moles of PbI_2 will be produced from 237.1 g of potassium iodide

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of potassium iodide}=\frac{237.1g}{166g/mol}=1.428moles

The balanced chemical reaction is:

Pb(NO_3)_2+2KI\rightarrow PbI_2+2KNO_3

According to stoichiometry :

2 moles of KI produce =  1 mole of PbI_2

Thus moles of KI will require=\frac{1}{2}\times 1.428=0.714moles  of PbI_2

Thus 0.714 moles of PbI_2 will be produced from 237.1 g of potassium iodide

6 0
3 years ago
Read 2 more answers
) describe the arrangement within energy levels of the seven electrons of an atom of nitrogen.
pantera1 [17]

The arrangement within energy levels of the seven electrons of an atom of nitrogen is  2.5 (that is the first sub shell= 2 while the second sub shell=5)

explanation

In every atom the first energy level can accommodate a maximum of two (2) electrons. The next energy level can accommodate a maximum of 8 electrons. Therefore the seven electron for  nitrogen,  2 electron are put on first sub shell  while other other 5 are putted in the second sub shell.

8 0
3 years ago
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