The charge of the most probable ion formed from Lithium atom has to be given. Concept Introduction: The atomic number of an atom embodies the number of protons in the atom. For a neutral atom, number of electrons and number of protons are equal. So the atomic number of neutral atom also embodies the number of electrons in the atoms. Negative charge ions are formed by removing of electrons from neutral atom. Cations are electrically positively charged particles that result from a loss of one or more electrons from the neutral atom. X → -e - X + Neutral atom becomes a Cation. Anions are electrically negative charged particles that result from a gain of one or more electrons by the neutral atom. X → +e - X −
The charge of the most probable ion formed from Lithium atom has to be given. Concept Introduction: The atomic number of an atom embodies the number of protons in the atom. For a neutral atom, number of electrons and number of protons are equal. So the atomic number of neutral atom also embodies the number of electrons in the atoms. Negative charge ions are formed by removing of electrons from neutral atom. Cations are electrically positively charged particles that result from a loss of one or more electrons from the neutral atom. X → -e - X + Neutral atom becomes a Cation. Anions are electrically negative charged particles that result from a gain of one or more electrons by the neutral atom. X → +e - X −
Definition Definition Number of protons in the nucleus of an atom. It uniquely identifies an element, as the number of protons determines the element's properties. The periodic table of elements is arranged based on increasing atomic numbers, allowing scientists to easily locate and study elements.
Chapter 2, Problem 2.107QP
(a)
Interpretation Introduction
Interpretation:
The charge of the most probable ion formed from Lithium atom has to be given.
Concept Introduction:
The atomic number of an atom embodies the number of protons in the atom. For a neutral atom, number of electrons and number of protons are equal. So the atomic number of neutral atom also embodies the number of electrons in the atoms. Negative charge ions are formed by removing of electrons from neutral atom.
Cations are electrically positively charged particles that result from a loss of one or more electrons from the neutral atom.
X→-e-X+
Neutral atom becomes a Cation.
Anions are electrically negative charged particles that result from a gain of one or more electrons by the neutral atom.
X→+e-X−
(b)
Interpretation Introduction
Interpretation:
The charge of the most probable ion formed from Calcium atom has to be given.
Concept Introduction:
Refer part (a).
(c)
Interpretation Introduction
Interpretation:
The charge of the most probable ion formed from Sulphur atom has to be given.
b) Certain cyclic compounds are known to be conformationally similar to carbohydrates, although they are not
themselves carbohydrates. One example is Compound C shown below, which could be imagined as adopting
four possible conformations. In reality, however, only one of these is particularly stable. Circle the conformation
you expect to be the most stable, and provide an explanation to justify your choice. For your explanation to be
both convincing and correct, it must contain not only words, but also "cartoon" orbital drawings contrasting the
four structures.
Compound C
Possible conformations (circle one):
Дет
Lab Data
The distance entered is out of the expected range.
Check your calculations and conversion factors.
Verify your distance. Will the gas cloud be closer to the cotton ball with HCI or NH3?
Did you report your data to the correct number of significant figures?
- X
Experimental Set-up
HCI-NH3
NH3-HCI
Longer Tube
Time elapsed (min)
5 (exact)
5 (exact)
Distance between cotton balls (cm)
24.30
24.40
Distance to cloud (cm)
9.70
14.16
Distance traveled by HCI (cm)
9.70
9.80
Distance traveled by NH3 (cm)
14.60
14.50
Diffusion rate of HCI (cm/hr)
116
118
Diffusion rate of NH3 (cm/hr)
175.2
175.2
How to measure distance and calculate rate
For the titration of a divalent metal ion (M2+) with EDTA, the stoichiometry of the reaction is typically:
1:1 (one mole of EDTA per mole of metal ion)
2:1 (two moles of EDTA per mole of metal ion)
1:2 (one mole of EDTA per two moles of metal ion)
None of the above
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Atomic Number, Atomic Mass, and the Atomic Structure | How to Pass ChemistryThe Nucleus: Crash Course Chemistry #1; Author: Crash Course;https://www.youtube.com/watch?v=FSyAehMdpyI;License: Standard YouTube License, CC-BY