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Natalka [10]
3 years ago
7

How many neutrons are in a single atom of indium-115?

Chemistry
1 answer:
anzhelika [568]3 years ago
8 0
Indium has 49 protons 

mass number (# of neutrons and # of protons combined) is 115

115 - 49 = 66

66 neutrons
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What is the difference between intermolecular forces and intramolecular forces
MrMuchimi

Answer:

Intramolecular forces are the forces that hold atoms together within a molecule. Intermolecular forces are forces that exist between molecules.

Explanation:

Examples: Intermolecular forces are categorized into dipole-dipole forces, London dispersion forces and hydrogen bonding forces.

Intramolecular forces are categorized into covalent, ionic and metal bonds

6 0
2 years ago
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a 160 milligram sample of a radioactive isotope decays to 10 kilograms in 12 years. what is the half life of this element
Shkiper50 [21]

Answer:

3 years

Explanation:

Given data:

Initial amount of sample = 160 Kg

Amount left after 12 years = 10 Kg

Half life = ?

Solution:

at time zero = 160 Kg

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2nd half life = 80/2 = 40 kg

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8 0
3 years ago
What is the difference between heterozygous and homozygous
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8 0
2 years ago
A sample of an ideal gas at 1.00 atm and a volume of 1.72 l was placed in a weighted balloon and dropped into the ocean. as the
kolbaska11 [484]
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7 0
3 years ago
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\lambda =2.2508\times 10^{19} m

2.2508\times 10^{19} m meter the mean free path of hydrogen atoms in interstellar space.

7 0
3 years ago
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