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What is the dense center of the atom called?
the denser part of an atom is the nucleus. about 99% of the mass of an atom is concentrated within the atom.
What is a positively central part of an atom?
In the nucleus of an atom, the positively charged particles are called Protons.
What is the very small dense region of an atom?
The very small dense region of an atom is the nucleus. It contains protons and neutrons, which are tightly packed together at the center of the atom. Electrons orbit around the nucleus in the electron cloud.
Why did Rutherford change Thomson's model of the atoms?
According to his Thompson's model, an atom was a sphere of positive matter that held electrons, so Rutherford discovered that an atom has a nucleus and that the nucleus contains most of the matter of the atom. Also that the atom has electrons, protons, and neutrons surrounding it.
What is the outer most part of a atom?
The outermost part of an atom is the electron cloud, where electrons are located. These negatively charged particles orbit the nucleus of the atom, which contains positively charged protons and neutral neutrons.
The part of the atom that is small and dense is?
The nucleus is the small and dense center of an atom. It contains protons and neutrons, which are the subatomic particles that make up the majority of the atom's mass.
What is the most dense part of the atmosphere?
Troposphere is the most dense part because it is at the bottom of the atmosphere.
What is the dense center of the atom called?
the denser part of an atom is the nucleus. about 99% of the mass of an atom is concentrated within the atom.
What part of the rain forest is very dense?
Most of the rainforest is very dense, but the understory and canopy are both pretty dense. The canopy and the understory are both very dense but the undersrory is the most dense.
What part of an atom takes up most of its space?
The most space of an atom is vacuum.
Most nuclei contain a small dense region known as the?
Most nuclei contain a small dense region called the nucleus, which contains protons and neutrons. The nucleus is the core of an atom and is responsible for holding the positive charge of an atom.
What is nucleus of an atom?
The nucleus of an atom is the central core where protons and neutrons are located. It is very dense and contains most of the mass of the atom. Electrons orbit around the nucleus in specific energy levels.
What is the most dense part of earth?
inner core
What did ernest rutherford conclude about the nucleus of an atom?
Ernest Rutherford concluded that the positive charge of an atom is concentrated in a dense core at the center called the nucleus. This discovery came from his gold foil experiment, where he observed that most of the alpha particles passed straight through the foil, indicating that most of the atom is empty space.
What did Rutherford picture an atom as?
Rutherford pictured an atom as a small, dense, positively charged nucleus surrounded by orbiting electrons. He proposed this nuclear model based on his gold foil experiment, which showed that most of the atom's mass and positive charge is concentrated in the nucleus.
What is the least dense part of the atom?
The electron cloud is probably the least dense part of an atom. The electron is certainly the smallest individual component of an atom, but electrons are in motion. And because they are in motion, they describe the volume of the atom. Additionally, they describe a huge volume compared to their size. That translates into the electron cloud "taking up lots and lots of room" but being populated by only a few electrons. The electron cloud has a very, very low density.
Who was the first to propose that most of the mass of an atom is in the tiny dense positively charged nucleus?
Greek philosopher Democritus.
