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Ede4ka [16]
3 years ago
12

An atom that undergoes radioactive decay and has a large nucleus most likely contains

Chemistry
2 answers:
jeka57 [31]3 years ago
7 0

Answer:

A: high neutron proton ratio

Explanation:

Radioactive decay occurs when unstable isotopes have their nuclei broken due to atomic instability. When this occurs, the radioactive decaying atom with a large nucleus probably contains a high ratio of neutron protons.

To understand why an isotope disintegrates we need to focus on the atomic nucleus. The nucleus is known to be charged with positive particles (protons), and they are very close to each other. It is also true that particles with equal charges repel each other. Therefore, the proximity of protons causes them to repel each other in an attempt to take as much space as possible. As a result, the core breaks because it cannot handle these repellent charges.

iogann1982 [59]3 years ago
3 0
I believe the correct response would be A. More neutrons than protons.
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To what final concentration of NH3 must a solution be adjusted to just dissolve 0.060 mol of NiC2O4 (Ksp = 4×10−10) in 1.0 L of
ololo11 [35]
Given:
0.060 mol of NiC2O4
Ksp = 4 x 10⁻¹⁰
1.0 L of solution
Kf of Ni(NH3)6 2⁺ = 1.2 x 10⁹
<span>NiC2O4 + 6NH3 ⇋ Ni(NH3)6 2+ + 2O4 2- </span>
<span>NiC2O4 ⇋ Ni 2+ + C2O4 2- ...Ksp </span>
<span>Ni2+ + 6NH3 ⇋ Ni(NH3)6 2+...Kf </span>

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K = 0.48 = [Ni(NH3)6 2+][C2O4 2-] / [NH3]⁶<span> 
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3 0
3 years ago
Which of the following correctly illustrates the mass of reactants and products for the reaction below?
Marina CMI [18]

Answer:

The mass of reactants and products for the reaction is this:

- 92 g Na, 32 g O₂, 124 g Na₂O

which is not a choice from the list.

Explanation:

4 moles of Na reacts with 1 mol of oxygen to produce 2 moles of sodium oxide.

Na = 23 g/m

4 moles are (4 . 23) = 92 g

O₂ = 32 g/m

It's a diatomic molecule (each O is 16 g/m)

Na₂O = 62 g/m

2 mol of sodium oxide will be (2 .62) = 124 grams

The mass of reactants and products for the reaction is this:

- 92 g Na, 32 g O₂, 124 g Na₂O

which is not a choice from the list.

3 0
4 years ago
The molar enthalpy of
nika2105 [10]

Answer:

vaporization

Explanation:

The molar enthapy of _vaporization______ is the heat required to vaporize one mole of a liquid”

7 0
4 years ago
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