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Is CaSO4 Ionic or covalent?
You cannot tell from a formula whether an compound is ionic or molecular. The distinction is arbitrary at best, and there are actually very few purely ionic compounds. Al2S3 will be somewhere between ionic and covalent. Depending what level you are at and wherer you are taught different classifications of aluminium sulfide are given. See link for one view. Al2S3 is a colorless high melting compound, the aluminium atoms are in tetrahedral coordination in the most stable forms. This is line with the size difference between S and Al. The electronegativity difference between Al and S is ony 0.97. These are factors that need to be taken into account when making a decision. My view is partially covalent partially ionic!
What is the difference between particle size and crystallite size?
crystallite is the average size of the particle whereas the particle size denotes the individual size of the particle.
Do all electrons have the same size?
No they are not the same size. The size of atoms is one of the things that differentiate the basic elements. The number of neutrons and electrons affects the size. There are specific sizes depending upon the number of valiance shells that are occupied. So while weight may vary between certain elements, the area they occupy will be almost identical. There is a lot of difference in sizes. In general, if you look at the atomic weight you will see the size difference. However, the size difference between different atoms are nowhere near the scale of the differences in weights and number of protons and neutrons. For example, an atom of plutonium is roughly 200 times as heavy as a hydrogen atom, but only about 3 times the size of a hydrogen atom.
What is true of the ionic size of the elements in a group as one moves from top to bottom in that group?
Ionic size increases from top to bottom within the group.
Why do both atomic size and iconic size increase as you move down a group?
As we go down in the period, the energy level increases but the number of electrons on the outermost shell (valence electrons) stays the same. This means the nuclear pull on the electrons gets higher and higher thus the size of the atom decreases.
What is the difference between atomic size and atomic number?
The atomic number of an element determines the number of protons that are present in that element. The atomic size refers to the distance that the outermost valence electrons are from the nucleus.
Why do both and atomic size and ionic size increase as you move down a group?
Both trends hold for both positive and negative ions.
What is the ionic radius trend across a period?
Atoms increase in size as you go down a column and are larger going from right to left across a row.because while going from left to right in a period electrons enter in the same orbit and hence the attraction between the nucleus increasees
Max Planck's work with atoms correlated energy to A atomic size B frequency C ionic charge D mass?
Frequency
What is the difference between a minivan and a van?
The difference is the size.
What is the difference between the clothing size L and XL?
the different size. There is no much difference between two subsequent sizes
What neutral atoms has the largest atomic size between Li Fl Cl and Mg?
From the given elements, Mg has the largest atomic radius, hence the size.
What is the size difference between a girls basketball and a boys?
there is no difference
What is the difference between a size 32DD and 34DD Bra?
what is difference between 32dd and 34dd
What is the size difference between Mercury and Earth?
The size of your mommas stomach
What is the size of the eagle?
what is difference between NB & OD in pipe size
What is the difference between sand and gravel?
size
