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The atom is the smallest part of matter that represents a particular element. For quite a while, the atom was thought to be the smallest part of matter that could exist. But in the latter part of the 19th century and early part of the 20th, scientists discovered that atoms are composed of certain subatomic particles and that, no matter what the element, the same subatomic particles make up the atom. The number of the various subatomic particles is the only thing that varies. Scientists now recognize that there are many subatomic particles (this really makes physicists salivate). But in order to be successful in chemistry, you really only need to be concerned with the three major subatomic particles: Protons Neutrons Electrons
What else can I help you with?
How many subatomic particles does lead has?
Lead has a total of 82 subatomic particles, which includes 82 protons and typically 126 neutrons in its most common isotope. Electrons can vary in number based on the charge of the ion.
What subatomic particles make up the atom?
protons, neutrons and electrons are the main subatomic particles of the atom. There are the same number of protons as electrons, which is equal to the atomic number. The number of neutrons may vary according to the isotope of the element.
Neutrons add only to an atom?
Neutrons are subatomic particles found in the nucleus of an atom. They contribute to the overall mass of the atom but do not affect its chemical properties. The number of neutrons in an atom can vary, leading to different isotopes of the same element.
Can isotopes have the same number of subatomic particles?
An isotope is defined as: Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element So basically, an isotope is from the same place (element) and has the same number of protons, but the number of electrons differ. So isotopes are not subatomic; the protons and electrons that make an isotope are subatomic.
What are two physical properties that can vary even when the substance with these properties does not change?
Density and temperature can both vary for a substance without changing the identity of the substance. The density of a substance can change with temperature, pressure, or the presence of impurities, while the temperature of a substance can change due to external factors like heating or cooling.
What subatomic particles will vary in different isotopes of an element neutrons protons electrons or valence shells?
The number of neutrons is variable.
How many subatomic particles does lead has?
Lead has a total of 82 subatomic particles, which includes 82 protons and typically 126 neutrons in its most common isotope. Electrons can vary in number based on the charge of the ion.
What subatomic particles make up the atom?
protons, neutrons and electrons are the main subatomic particles of the atom. There are the same number of protons as electrons, which is equal to the atomic number. The number of neutrons may vary according to the isotope of the element.
Are all particles the same size?
No, particles can vary in size. They can range from atoms, which are extremely small, to larger particles like dust, pollen, or sand. The size of a particle can have various effects on its properties and behavior.
Neutrons add only to an atom?
Neutrons are subatomic particles found in the nucleus of an atom. They contribute to the overall mass of the atom but do not affect its chemical properties. The number of neutrons in an atom can vary, leading to different isotopes of the same element.
Is radiation a measure of the average kineic energy of the particles in an object?
No, radiation is not a measure of the average kinetic energy of particles in an object. Radiation refers to the emission of energy as electromagnetic waves or particles from a source. The energy of radiation can vary depending on the type and source, and it is not directly related to the average kinetic energy of particles in an object.
What are clumps of small particles?
Clumps of small particles are referred to as aggregates, which are collections of individual particles that have come together due to various forces such as gravity, electrostatic attraction, or molecular adhesion. These aggregates can vary in size and shape depending on the properties of the particles and the forces involved in their formation.
Determine the number of each of the three types of subatomic particles in selenium?
Selenium has 34 protons, 34 electrons, and its most common isotope has 45 neutrons, which gives it a mass number of approximately 79. The number of each subatomic particle can vary slightly depending on the specific isotope of selenium.
What are 2 physical properties of people?
Some physical properties of people include height and weight. These characteristics can vary widely among individuals and are influenced by factors such as genetics, diet, and lifestyle.
How netrons in proshorous?
Neutrons are subatomic particles found in the nucleus of an atom. They do not have an electrical charge, and their presence helps to stabilize the nucleus by balancing the positively charged protons. The number of neutrons in an atom can vary, leading to different isotopes of the same element.
Which of the following statements most closely describes Democritus's ideas about matter?
Democritus believed that matter was made up of tiny, indivisible particles called atoms. These atoms were eternal and unchanging. Democritus also proposed that different physical properties and interactions among atoms resulted in the variety of substances we observe in the world.
Can isotopes have the same number of subatomic particles?
An isotope is defined as: Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element So basically, an isotope is from the same place (element) and has the same number of protons, but the number of electrons differ. So isotopes are not subatomic; the protons and electrons that make an isotope are subatomic.
