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NUCLEOLUS- small dense region where the assembly of ribosomes begins
chromatin
nucleolus
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∙ 14y ago
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A sentence for nucleus?
Example sentence - At the center of an atom is the very dense region called the nucleus.
Why is the nucleus of an atom so dense?
the nucleus has a very dense centre because it has to be large enough to contain numerous amounts of particles.
If the atom is assumed to be a sphere what is the volume of a single Sn atom?
1.15*10^-29 VERY small.
Why are most particle collisions ineffective?
comparing to an atom , the particles of it are very very small , their collision may be effective inside that atom but we could not measure the effectiveness since it takes place for a very very small time (fempto seconds) than the size of electron. Hence we think that the particle collisions are ineffective .
What important discovery did Ernest Rutherford make?
He found that the atom was made up of mostly empty space.
What is nucleus of an atom?
The nucleus is the very dense region consisting of nucleons (protons and neutrons) at the center of an atom.
A sentence for nucleus?
Example sentence - At the center of an atom is the very dense region called the nucleus.
Where is the nucleus in a sentence?
there is a nucleus in a cell or the nucleus is the brain for the cell
What is the relative size and and parts of a nucleus?
The atom's nucleus consists of protons and neutrons. The nucleus is relatively small and very dense at that.
Is the nucleus a very small region of the atom?
Yes. It was shown by Rutherford's alpha scattering experiment.
Is the very small dense center of an atom?
Nucleus
What is the nucleus of an atom?
It contains protons, and SOME also contain neutrons.
Why the nucleus is very dense?
Because more than 99 % from the mass of an atom is concentrated in the nucleus (protons + neutrons).
What was Ernest Rutherford most known for?
He is best known for his new model of the atom. He performed the alpha scattering experiment and concluded that the nucleus is positively charged, very dense and makes up a very small part of the atom such that most of an atom is empty space.
Is an atom large?
An atom is very small the human eye can not see an atom that is what makes it small.
What did Rutherford picture an atom as?
A short answer for the Rutherford atomic model: the atom is composed from a central part - a nucleus, positively charged, surrounded by electrons - very small negative charged particles.
What is the initial state of the universe according to the big bang theory?
Very small, very dense, very hot. Basically, all the matter that is currently in the Universe was initially concentrated in a space smaller than an atom.
