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I didn't check whether it actually is larger, but there is a general tendency for the atomic radius to DECREASE from left to right, in any given row of the Periodic Table. This is a result of an increase in the number of protons - and thus, of the positive electric charge, which keeps the electrons together.
Wiki User
∙ 6y ago
Wiki User
∙ 6y agoFrom left to right you have Sodium, Magnesium, Aluminium, Silicon, Phosphorus, Sulfur, Chlorine and Argon. Now you see the radius in picometer. Sodium - 190 pm, Magnesium - 145 pm, Aluminium - 118 pm, Silicon - 111 pm, Phosphorus - 98, Sulfur - 88 pm, Chlorine - 79 pm, Argon - 71 pm. Atomic number of Sodium - 11, Magnesium - 12, Aluminium - 13, Silicon - 14, Phosphorus- 15, Sulfur - 16, Chlorine -17, Argon - 18. Now you can understand the explanation given by my expert colleague in better way. As the number of protons increase, they tend to attract the electrons closer and closer. because positive charge in the nucleus go on increasing. So the size of the atom decrease step by step from left to right in the row of a periodic table. As the Silicon is on the left side to the atom of Chlorine, it is larger in size. You know that the atom is too much hollow and has got lot of space inside it. So atoms can afford to decrease in size with out any problem.
Wiki User
∙ 7y agoChlorine has more electrons and the attraction to the nucleus is stronger; so the atom gas a lower radius.
Wiki User
∙ 12y agosodium
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What is the general trend of atomic radius?
When looking at a periodic table, atomic radius increases from top to bottom, and decreases from left to right. The bottom left corner is the largest, while the top right corner is the smallest radius.
In general - what happens to the atomic radius from left to right across a period?
Generally, it decreases.*As you move from left to right across a period the elements' number of protons increases, increasing the effective nuclear charge (the charge felt by the outermost [valence] electrons after taking into account the shielding electrons). As effective nuclear charge increases the attraction between the nucleus and the valence electrons increases, pulling the valence electrons closer to the nucleus, decreasing the atomic radius.*Please understand that this is not a hard and fast rule. There are other factors to take into account when determining atomic radius, this is just a general trend witnessed.
What happens to size of atoms while moving across the period?
Atomic Radius Decreases from left to right. From left to right the amount of valence shell electrons increases, maxing out at 8. These valence electrons are pulled by the positively charged nucleus, thus making it smaller from left to right.
Why should you use a convex lens of large radius of curvature in performing newtons ring experiment?
Radius of rings is directly proportional to the square root of the radius of curvature. Thin lens would have larger radius of curvature and hence the option
The elements on the periodic table are arranged in order of increasing?
1) Elements on the modern Periodic Table are arranged in order of increasing: (a) Atomic mass 5 As the elements of Group 17 are considered in order of increasing atomic number, there is an increase in: (1) Atomic radius 7) In the wave-mechanical model of the atom, orbitals are regions of the most probable locations of: (4) electrons 2 Which phrase describes an atom? (3) A negatively charged electron cloud surrounding a positively charged nucleus 3 Which total mass is the smallest? (1) The mass of 2 electrons
Which element has a larger atomic radius silicon or lead?
Atomic radius of Si is 111pm.Atomic radius of Pb is 175pm.Therefore lead has a larger atomic radius than silicon.
Which has the larger atomic radius silicon or bromine?
Bromine
How does bromine's atomic radius compare to chlorine's?
Bromine's atomic radii is larger than that of chlorine.
How does bromines atomic radius compared chlorine?
Bromine's atomic radii is larger than that of chlorine.
Si has a larger atomic radius than C?
Yes Atomic radius of carbon: 60 pm Atomic radius of silicon: 110 pm
Which has a higher atomic raduis chlorine or bromine?
Bromine has a larger radius (not raduis) than chlorine.
What elements has the smallest atomic radius bromine sulfur chlorine or selenium?
Chlorine will have the smallest atomic radius, bromine the largest.
What has a larger atomic radius Cl ion or Ca ion?
Calcium has the larger atomic radius than chlorine. Calcium has four energy levels, whereas chlorine has three energy levels. The higher the energy level, the farther it is from the atomic nucleus.
Which has a larger radius S or Cl?
S has a larger radius. The atomic radius decreases across a period.
What has an atomic radius of 099?
It is a difference between the empirical and the calculated atomic radius of an element; also all the values are only approximates. The empirical atomic radius of sulphur, phosphorous and chlorine is 100 pm. The calculated atomic radius of phosphorous is 98 pm.
Why is Mg smaller than Cl?
Magnesium isn't smaller than chlorine, it's larger. The atomic radius for magnesium is 145 pm and the atomic radius for chlorine is 79 pm. Both magnesium and chlorine are in the third period of the periodic table. The trend for atomic radius is that the elements generally get smaller as you move from left to right across the table in the same period.
Is chlorine's atomic radius bigger or is bromine's?
The atomic radius of bromine is bigger.
