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Atomic and ionic radii are estimated because they are not directly measurable quantities. They are theoretical values based on experimental data and mathematical models. Estimating these radii helps in understanding the chemical and physical properties of elements and compounds.
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What must be true about the net ionic charge in an ionic compound?
The net ionic charge in an ionic compound must be zero because the compound is formed by the attraction of positively and negatively charged ions. The total positive charge from cations must balance the total negative charge from anions to maintain overall neutrality.
How is an ionic radius and an atomic radius related?
Ionasion energy decreases as the shielding effect increases , due to the fact that more electrons are available and less nuclear attraction takes place. Therefore lower ionasion energy will be required.
What is the relationship between the atomic number of an element and its atomic radius from the graph of your lab report?
Atomic number = number of protons Atomic mass number = number of protons + number of neutrons Relative mass number = the weighted average mass numbers of the naturally occurring isotopes as compared to C-12 If you delete the atomic number from the mass number you get the number of neutrons. The atomic number is the number of protons and electrons. (They are both the same number.)
What must an ionic compound add up to?
An ionic compound must have a total charge of zero. This is achieved by combining positively charged cations with negatively charged anions in a way that balances out the charges.
What is the formula for the ionic compound of lithium oxygen?
The formula for the ionic compound of lithium and oxygen is Li2O. This is because lithium has a +1 charge and oxygen has a -2 charge. The charges must balance out in an ionic compound.
What type of bond is formed when the electron must be donated?
This is an ionic bond.
What is the range of the radio of must atoms in nanometer?
The radii of atoms are expressed in picometers (pm).1 ooo pm = 1 nmThese radii are between 75 and 250 pm.
Which atoms are relatively larger than oxygen atoms?
It is not hydrogen so it must be nitrogen and bromine since it has a higher atomic radius.
Is two arcs of a circle congruent if and only if their associatd radii are congruent?
Yes, two arcs of a circle are congruent if and only if their associated radii are congruent. This is because congruent arcs subtend equal angles at the center of the circle, which means the radii connecting the center to the endpoints of the arcs must also be equal in length. Thus, the congruence of the arcs directly correlates to the congruence of their respective radii.
What must be true about the net ionic charge in an ionic compound?
The net ionic charge in an ionic compound must be zero because the compound is formed by the attraction of positively and negatively charged ions. The total positive charge from cations must balance the total negative charge from anions to maintain overall neutrality.
Are all cylinders with the same radii similar?
No. To be similar ALL lengths must be in the same ratio. If two cylinders have the same radii, but different heights then the radii have one ratio (1:1) but the heights have a different ratio; thus they are not similar.
How is an ionic radius and an atomic radius related?
Ionasion energy decreases as the shielding effect increases , due to the fact that more electrons are available and less nuclear attraction takes place. Therefore lower ionasion energy will be required.
Why do atomic weights are in fraction?
Because atomic weights must be measured in fractions.
How dissolve an ionic solid in water you must first disrupt the ionic bonds holding the ionic lattice together?
in order for an ionic solid to dissolve, the ionic bonds must break through the reaction with water. So yes, what you said is correct. For example a solid NaCl is mixed with water: H20 + NaCl (s) --> Na+ + Cl- + H30+ + OH-
What element has an atomic number that is double the atomic number of silicon?
Chromium atomic number is 24 and silicon atomic number is 14 so double of 14 is 28 so it must be nickel. i am not sure but it must be that
What is the relationship between the atomic number of an element and its atomic radius from the graph of your lab report?
Atomic number = number of protons Atomic mass number = number of protons + number of neutrons Relative mass number = the weighted average mass numbers of the naturally occurring isotopes as compared to C-12 If you delete the atomic number from the mass number you get the number of neutrons. The atomic number is the number of protons and electrons. (They are both the same number.)
What must an ionic compound add up to?
An ionic compound must have a total charge of zero. This is achieved by combining positively charged cations with negatively charged anions in a way that balances out the charges.
