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Umnica [9.8K]
3 years ago
11

Give the nuclear symbol (isotope symbol) for the isotope of bromine that contains 44 neutrons per atom. nuclear symbol:_________

_ Give the nuclear symbol (isotope symbol) for the isotope of iron that contains 30 neutrons per atom. nuclear symbol:__________ Give the nuclear symbol (isotope symbol) for the isotope of gold that contains 118 neutrons per atom. nuclear symbol:__________
Chemistry
1 answer:
Savatey [412]3 years ago
4 0

Answer:79

35Br

56

26Fe

197

79Au

Explanation:

In the nuclear symbol of an element, the superscript represents the mass number. The mass number is the sum of the number of protons and the number of neutrons present in the atom. The subscript is the atomic number which is the number of protons present in the atom or the number of electrons in the neutral atom.

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Explanation:

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2 years ago
I need help doing this please. It’s an image
Ne4ueva [31]

Answer:

k+

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5 0
3 years ago
Please help me with this answer correct
oksano4ka [1.4K]

Answer:

hope this helps :)

Explanation:

for the first one, you can look at the periodic table and look at the atomic number and it will show you how many protons there are giving you the answer because protons and electrons are equal in a pure element

a- carbon

b- neon

c- boron

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g- lithium

h- beryllium

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5 0
2 years ago
Read 2 more answers
Describe where a hydrogen bond can form among water molecules.
stiv31 [10]

Answer:

                 In water hydrogen bonding formed between partially negative oxygen and partially positive hydrogen atoms.

Explanation:

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4 0
3 years ago
Calculate the number of moles CuCl2 necessary to make 50 mL of a 0.15M solution
tekilochka [14]
 Volume  ⇒ 50 mL in liters : 50 / 1000 = 0.05 L

Molarity of solution ⇒ 0.15 M

Number of moles:

n =  M * V

n = 0.15 * 0.05

n = 0.0075 moles of CuCl2

hope this helps!.

3 0
3 years ago
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