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Agata [3.3K]
3 years ago
9

in this cut-away image of an atom, where is the red arrow most likely pointed at the greatest probability of locating an electro

n

Chemistry
2 answers:
iren [92.7K]3 years ago
5 0
It’s C :) hopefully its right ^_^
emmasim [6.3K]3 years ago
3 0

Answer:

c

Explanation:

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The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Rhenium-185 has in its nucleus
sweet [91]

Answer:

d. 75 protons, 110 neutrons

Explanation:

In an isotope, the number next to the number of the atom is the mass number (Protons + neutrons). Rhenium has as atomic number 75, that means Rhenium has <em>75 protons</em>. As atomic mass, 185, is the sum of protons and neutrons, number of neutrons is:

185 - 75 = <em>110 neutrons</em>

<em />

Thus, right answer is:

<em>d. 75 protons, 110 neutrons </em>

<em />

8 0
3 years ago
What do repeated trials in an experiment allow a scientist to do?
Oksana_A [137]

Answer:

Learn from their experiment and know the possible results from trial and error

8 0
3 years ago
10. A sample of an unknown composition was tested in a laboratory. The sample could not be broken down by
damaskus [11]

Answer:

it would be an element because its an element

Explanation:

8 0
3 years ago
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Which of the following metals reacts with aqueous Cubo A) Au B) Ag C) Hg D) all of the above E) none of the above
Yanka [14]

Answer:

E) None of the above

Explanation:

Metals react according to the activity series, thta is organized with the leats metals in in the bottom and the most reactive metals in the top. Most reactive metals displace less reactive metals in the compounds they are found.

in this series, Gold, Silver and Mercury are below Copper, this is, they are less reactive than Cu. this means none of them can displace it from its compounds.

4 0
3 years ago
How does electronegativity affect the polarity of the bond between two atoms?
Fantom [35]
It can allow the molecule (like water) to be polar because it has a negative and positive side to it (oxygen holds the negatives tight causing the hydrogens to be positive).
7 0
3 years ago
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