Knowing what you know about the nucleus and the subatomic particles in the nucleus, what do you think is the charge of the nucleus of an atom? The nucleus of an atom has a positive charge because the proton is positive and the neutron is neutral . ... Electrons are smaller than a proton or a neutron.
What do you think is the importance of understanding the structure and behavior of the subatomic particles of the atom?
Theoretical and experimental research in particle physics, the study of subatomic particles and their properties, has given scientists a clearer understanding of the nature of matter and energy and of the origin of the universe .
What subatomic particles are located in the nucleus of an atom does the nucleus of the atom have a charge is so what is it?
The nucleus contains two types of subatomic particles, protons and neutrons . The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge.
What do you think is the charge of the nucleus of the atom?
The nucleus contains protons, which have a positive charge equal in magnitude to the electron's negative charge . The nucleus may also contain neutrons, which have virtually the same mass but no charge.
What subatomic particles are equal to make a neutral atom?
When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral.
Who said an atom is mostly empty space?
In 1911, a British scientist named Ernest Rutherford discovered that an atom is mostly empty space. He concluded that the positively charged particles are contained in a small central core called the nucleus.
What is the lightest subatomic particle?
Electron , lightest stable subatomic particle known. It carries a negative charge of 1.602176634 × 10 − 19 coulomb, which is considered the basic unit of electric charge. The rest mass of the electron is 9.1093837015 × 10 − 31 kg, which is only 1 / 1,836 the mass of a proton.
What is an atom's nucleus made of?
The nucleus is a collection of particles called protons , which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.
What do you call the attraction between the nucleus and the electron?
Table of contents No headers. Chemical bond refers to the forces holding atoms together to form molecules and solids. This force is of an electric nature, and the attraction between electrons of one atom to the nucleus of another atom contributes to what is known as chemical bonds .
What particle has no charge?
Neutron , neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10 − 27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.
Why does a nucleus have a positive charge?
The nucleus has an overall positive charge as it contains the protons . Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral.
Why the nucleus is very dense?
Size and Mass of the Nucleus
Electrons have virtually no mass, but protons and neutrons have a lot of mass for their size. As a result, the nucleus has virtually all the mass of an atom. Given its great mass and tiny size , the nucleus is very dense.
Is the nucleus mostly empty space?
There is no empty space around a nucleus , as in Bohr's superseded model. ... The nucleus makes up a tiny proportion of the space occupied by an atom, while the electrons make up the rest.
What two particles are equal in an atom?
The two particles in the atom that are equal in number are the protons and electrons . The protons are located in the nucleus along with neutrons.
Which two subatomic particles are equal in number and account for the charge of an atom?
Neutral atoms of each element contain an equal number of protons and electrons .
Why do neutrons have no charge?
Like all hadrons, neutrons are made of quarks. A neutron is made of two down quarks and one up quark. One up quark has a charge of +2/3, and the two down quarks each have a charge of -1/3. The fact that these charges cancel out is why neutrons have a neutral (0) charge .
