5.3.1 The Nuclear Atom
... All carbon atoms have the same number of protons, but not all carbon atoms are identical. Although atoms of the same element always have the same number of protons, they can have different numbers of neutrons. Atoms that differ in this way are called isotopes. ...
... All carbon atoms have the same number of protons, but not all carbon atoms are identical. Although atoms of the same element always have the same number of protons, they can have different numbers of neutrons. Atoms that differ in this way are called isotopes. ...
Unit 3 Notes
... BETA PARTICLES Because the atom now has one more proton, it becomes the element with an atomic number one greater than that of the original element. However, because the total number of protons and neutrons does not change during beta decay, the mass number of the new element is the same as that ...
... BETA PARTICLES Because the atom now has one more proton, it becomes the element with an atomic number one greater than that of the original element. However, because the total number of protons and neutrons does not change during beta decay, the mass number of the new element is the same as that ...
Atomic Structure
... 1. Isotopes of an element have ▪ the same mass number. ▪ different atomic numbers. ▪ the same number of protons but different numbers of neutrons. ▪ the same number of protons but different numbers of electrons. ...
... 1. Isotopes of an element have ▪ the same mass number. ▪ different atomic numbers. ▪ the same number of protons but different numbers of neutrons. ▪ the same number of protons but different numbers of electrons. ...
The Periodic Table
... than two electrons. Fill it first. • 3) Put electrons in the second shell. It can hold up to eight. • 4) Put electrons in the third shell. It can also hold up to eight. ...
... than two electrons. Fill it first. • 3) Put electrons in the second shell. It can hold up to eight. • 4) Put electrons in the third shell. It can also hold up to eight. ...
All matter is made up of tiny particles called atoms
... After completing this topic you should be able to : ...
... After completing this topic you should be able to : ...
Chapter 4 - Early at..
... • If an element has an atomic number of 34 and a mass number of 78 what is the: • number of protons in the atom? • number of neutrons in the atom? • number of electrons in the atom? • complete symbol of the atom? ...
... • If an element has an atomic number of 34 and a mass number of 78 what is the: • number of protons in the atom? • number of neutrons in the atom? • number of electrons in the atom? • complete symbol of the atom? ...
Atomic Structure Powerpoint
... The Atomic # = the # of Protons The mass # = The # of both Protons & Neutrons. Therefore, if you subtract the Atomic # (the number of Protons) from the mass # (the number of both Protons & Neutrons) what is left over must be the number of Neutrons!! ...
... The Atomic # = the # of Protons The mass # = The # of both Protons & Neutrons. Therefore, if you subtract the Atomic # (the number of Protons) from the mass # (the number of both Protons & Neutrons) what is left over must be the number of Neutrons!! ...
Element A pure substance made of only one type of atom which
... The last shell can also hold eight, but holds six as there are only six left. There are three shells altogether (which is why sulphur is in period 3). There are six electrons in the outermost shell (which is why sulphur is in group VI). Atoms are always trying to end up with a full outer shell ...
... The last shell can also hold eight, but holds six as there are only six left. There are three shells altogether (which is why sulphur is in period 3). There are six electrons in the outermost shell (which is why sulphur is in group VI). Atoms are always trying to end up with a full outer shell ...
Chapter 7 Models of Atomic Structure
... The Atomic Number of an atom is the number of protons it has. The Atomic Mass or Weight of the atom is total number of protons and neutrons in atoms nucleus. The number of neutrons of an atom can be determined by subtracting the atomic number from the atomic mass (which is the total number of proton ...
... The Atomic Number of an atom is the number of protons it has. The Atomic Mass or Weight of the atom is total number of protons and neutrons in atoms nucleus. The number of neutrons of an atom can be determined by subtracting the atomic number from the atomic mass (which is the total number of proton ...
atoms - Somerset Academy Silver Palms Middle/High
... positively charged. It is the same as a helium nucleus. Alpha radiation can cause an injury much like a bad burn. After alpha radiation the atomic number is decreased by 2 and the atomic mass by 4. A beta particle is a neutron that changes into a proton and a negative beta particle. Beta particles c ...
... positively charged. It is the same as a helium nucleus. Alpha radiation can cause an injury much like a bad burn. After alpha radiation the atomic number is decreased by 2 and the atomic mass by 4. A beta particle is a neutron that changes into a proton and a negative beta particle. Beta particles c ...
In 1869, Russia`s Dmitri Mendeleev and Germany`s Lothar Meyer
... are needed t o s ee thi s pi c ture. ...
... are needed t o s ee thi s pi c ture. ...
Understanding the Atom
... Name____________________ A. Early Ideas About Matter (40 points this side) 1. Many ancient Greek philosophers thought that all matter was made of only four elements—fire, water, air, and _______. 2. These early scientists were not able to ______ their theories. 3. Democritus proposed that matter is ...
... Name____________________ A. Early Ideas About Matter (40 points this side) 1. Many ancient Greek philosophers thought that all matter was made of only four elements—fire, water, air, and _______. 2. These early scientists were not able to ______ their theories. 3. Democritus proposed that matter is ...
Chapter 2: Atoms, Molecules, and Ions
... 17. Alpha particles beamed at thin metal foil may A) pass directly through without changing direction B) be slightly diverted by attraction to electrons C) be reflected by direct contact with nuclei D) A and C E) A, B, and C 18. Which one of the following statements about atomic structure is false? ...
... 17. Alpha particles beamed at thin metal foil may A) pass directly through without changing direction B) be slightly diverted by attraction to electrons C) be reflected by direct contact with nuclei D) A and C E) A, B, and C 18. Which one of the following statements about atomic structure is false? ...
catch some rays: alpha, beta, gamma (modified for adeed)
... from. Explain that in each example, energy was released, but that no matter was changed. These are chemical reactions, not nuclear. The difference is, in a nuclear reaction matter is actually changed to energy!! If you measure the mass before and after a chemical reaction, the masses would be the sa ...
... from. Explain that in each example, energy was released, but that no matter was changed. These are chemical reactions, not nuclear. The difference is, in a nuclear reaction matter is actually changed to energy!! If you measure the mass before and after a chemical reaction, the masses would be the sa ...
Chapter 4 Review Packet Section 4.1
... •Democritus ideas agreed with scientific theory, but did not include chemical behavior and had a lack of experimental support. John Dalton •By using experimental methods, Dalton transformed Democritus's ideas on atoms into scientific theory •He studied the ratios in which elements combine in chemica ...
... •Democritus ideas agreed with scientific theory, but did not include chemical behavior and had a lack of experimental support. John Dalton •By using experimental methods, Dalton transformed Democritus's ideas on atoms into scientific theory •He studied the ratios in which elements combine in chemica ...
Chapter 4 - Development of Atomic Theory
... 28. Atomic model that treats electrons as particles traveling around the nucleus in orbits having specific energy. 29. Determined that the energy of one quantum of radiation (light) is proportional to its frequency. 30. Explained the photoelectric effect. 31. Rutherford discovered the_____ with his_ ...
... 28. Atomic model that treats electrons as particles traveling around the nucleus in orbits having specific energy. 29. Determined that the energy of one quantum of radiation (light) is proportional to its frequency. 30. Explained the photoelectric effect. 31. Rutherford discovered the_____ with his_ ...
Unit 3 – Atomic Theory
... (fission = splitting). In this reaction, certain specific elements have their nuclei broken down into smaller parts. This reaction releases a tremendous amount of energy, which can be used for an explosion (nuclear weaponry), or to power and electric generator (nuclear reactor). ...
... (fission = splitting). In this reaction, certain specific elements have their nuclei broken down into smaller parts. This reaction releases a tremendous amount of energy, which can be used for an explosion (nuclear weaponry), or to power and electric generator (nuclear reactor). ...
All matter is made up of tiny particles called atoms
... After completing this topic you should be able to : ...
... After completing this topic you should be able to : ...
a Charged
... are different from the atoms of all other elements. 2. Compounds are composed of atoms of more than one element. The relative number of atoms of each element in a given compound is always the same. ...
... are different from the atoms of all other elements. 2. Compounds are composed of atoms of more than one element. The relative number of atoms of each element in a given compound is always the same. ...
The Atom - davis.k12.ut.us
... 1. All elements are composed of tiny particles called atoms. 2. Atoms of the same element are identical. Atoms of different elements are always different. 3. Atoms of different elements can chemically combine in fixed ratios to form compounds. ...
... 1. All elements are composed of tiny particles called atoms. 2. Atoms of the same element are identical. Atoms of different elements are always different. 3. Atoms of different elements can chemically combine in fixed ratios to form compounds. ...
Chapter 5 Review
... Who discovered the neutron, and in what year? How does the mass of a neutron compare to the mass of a proton? Dalton theorized that atoms are indivisible, and atoms of the same element are identical. Today ... ...
... Who discovered the neutron, and in what year? How does the mass of a neutron compare to the mass of a proton? Dalton theorized that atoms are indivisible, and atoms of the same element are identical. Today ... ...
The Atom
... • An isotope refers to atoms that have the same # of ___________, but they have a neutrons different # of ___________. mass • Because of this, they have different _________ #’s (or simply, different masses ___________.) • Isotopes are the same element, but the atoms weigh a different amount because ...
... • An isotope refers to atoms that have the same # of ___________, but they have a neutrons different # of ___________. mass • Because of this, they have different _________ #’s (or simply, different masses ___________.) • Isotopes are the same element, but the atoms weigh a different amount because ...