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Why does the atomic radius decrease with an increase in atomic numbers within a period?
As the atomic number increases, the number of protons in the nucleus increases or the effective nuclear charge of the nucleus increases. As a result the force exerted by the nucleus on the valence electrons is more or the size of the atom is small.
Why does atomic size increase as you go from left to right across a period?
atomic size decreases as we go from left to right. as we go from left to right, the number of protons in the nucleus increases, so the effective nuclear charge increases. due to this the electrons are attracted more towards the nucleus and hence, the size decreases.
What is the center of the atom where protons and neutrons are?
Atomic nucleus .
What is the approximate size of nucleus?
Nucleus of a cell ~10-7 - 10-6 m Atomic nucleus ~10-14 m
The atomic radius to the distance from the nucleus of an atom to?
The atomic radius is the distance from the nucleus of an atom to the outermost orbital of electron.
How is knowledge about the size of the atomic nucleus is based on probability?
The size of a nucleus may be measured by firing sub-atomic particles at the nucleus and counting the proportion that bounce off the nucleus rather than miss it entirely. Assuming that the nucleus is spherical in shape, the ratio allows its size to be estimated.
Which scientist deduced the size of the atomic nucleus?
Rutherford
An atomic neucleus has a diameter of aproxamiately?
Depends a carbon nucleus is 40 times the size of an hydrogen nucleus.
What is the atomic number of the nucleus?
The atomic number is the number of protons in a nucleus.
What is the size order for these scientific particles Proton Neutron Atom Electron Nucleus?
IIRC Atoms (contains Protons/Neutrons and electrons) Nucleus contains Protons and Nuetrons Proton atomic size 1 Nuetron atomic size 1 electron atomic size 1/1836 i.e the proton is 1836 bigger than the electron
Why does the atomic radius decrease with an increase in atomic numbers within a period?
As the atomic number increases, the number of protons in the nucleus increases or the effective nuclear charge of the nucleus increases. As a result the force exerted by the nucleus on the valence electrons is more or the size of the atom is small.
How does the size of an atomic nucleus compare with the size of the whole atom?
Think of the sun as the nucleus and the oort cloud (past pluto) as where the electron orbitals start. The size (volume) of the nucleus is tiny compared to the size (volume) of the atom (defined by the extent of the electron cloud).
Atomic number in the atomic nucleus?
The atomic number is equal to the number of the protons in the atomic nucleus.
Define atomic radii?
The atomic radii is the measure of the size of the atoms in a chemical element. This is the distance from the nucleus to the boundary of the electrons' cloud.
What does atomic radius means?
Atomic Radius means the size of the atoms, the distance from the atomic nucleus to the outermost electron orbital.
What the atomic number of nucleus of atom?
what is the atomic number of the nucleus?
What determine an atoms size?
The atomic radius depends on the the number of electron shells, total negative charge, positive charge of the nucleus, atomic mass.
