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Roentgenium (Rg) is a radioactive metal that has the atomic number 111 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. It is a Lanthanide metal. It has the symbol Mc. What is a “period?” What does it represent? Thallium (Tl) is a soft gray metal that has the atomic number 81 in the periodic table in Group 13. It is an Actinoid Metal with the symbol Fm. The periodic table today is arranged with two different parts, the groups and the periods. It is a Transition metal in Group 8. It is a Transition metal and located in Group 8 of the periodic table. Each shell consists of one or more subshells (named s, p, d, f and g). The groups are the vertical columns. Unknown elements (or transactinides) are the heaviest elements of the periodic table. It is a Transition metal in Group 7. It is an Actinoid Metal with the symbol No. It has the symbol Pt. It is a Transition metal in Group 6. Vibrational modes is a term used to describe the constant motion in a molecule. Alkaline earth metals is the second most reactive group of elements in the periodic table. It is an Actinoid Metal with the symbol Th. Ytterbium (Yb) is a silvery coloured metal that has the atomic number 70 in the periodic table. The Bohr model refers to the treatment of electrons as particles that orbit the nucleus. Where by if the exact position of the electron is known the momentum will be uncertain. It has the symbol Rf. A peak is the highest point on a transverse wave. There are a total of 18 groups. It has the symbol Os. It has the symbol Ho. It is a Transition metal in Group 10. It has the symbol La. You can see as we go down the group the mass of the atoms also increases and they get bigger! It has the symbol Og. It is a Transition metal and located in Group 9 of the periodic table. A period is a horizontal row of the periodic table. It has the symbol Sm. Which periodic table in the “specific” section do you like the most? Bohrium (Bh) is a radioactive metal that has the atomic number 107 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. It has the symbol Rg. Lead (Pb) is a soft gray metal that has the atomic number 82 in the periodic table in Group 14. Most of these are the elements that have been known since ancient times and have symbols based on their Latin names. Mendeleev also arranged his periodic table using this idea, as you go across the atoms get larger and as you go down they get larger. It has the symbol Rh. An ionic compound is a bond that forms between metals and non metals to form a large ionic lattice, Nuclear fusion is a process which occurs in. The periodic table is the collection of elements arranged by atomic number, Dmitri Mendeleev was a Russian scientist who in 1869 proposed the first structure of the periodic table, Groups are the columns of the periodic table with elements that are grouped together with similar properties, Periods are the rows of the periodic table that from left to right increase in order of mass, Group 1 elements are in the first group of the periodic table with similar properties of being soft and reacting violently with water, Mass is the amount of substance that can be measured in grams or kilograms. Quantum numbers is a term used to describe the assigning of numbers to electrons as a mathematical function to describe their momentum and energy. Wi… It is an Alkaline earth Metal with the symbol Ra and is located in Group 2 of the periodic table. As you move from left to right there are no similarities in these elements unlike in the groups but the number of protons and neutrons increases as the masses of the elements get larger. It is a Lanthanide metal. Einsteinium (Es) is a silvery-white colored radioactive metal that has the atomic number 99 in the periodic table. Groups are given a number to show where they are in the periodic table and also to identify the group of elements in them. It is a Transition metal in Group 11. It is a Lanthanide metal. It is an Actinoid Metal with the symbol Pu. It has the symbol Rg. Neptunium (Np) is a silvery colored radioactive metal that has the atomic number 93 in the periodic table. It has the symbol Tm. The term quantum mechanics refers to energy levels and the theoretical area of physics and chemistry where mathematics is used to explain the behaviour of subatomic particles. Hydrogen atoms under a lot of heat and pressure are forced together to make a larger atom of helium. Explain your answer. Why? Mendeleev put elements with similar properties and that react in similar ways into the same groups. It has the atomic number 53 in the periodic table. It is a Transition metal in Group 7. It is a Lanthanide metal. It has the symbol W. Tantalum (Ta) is a gray coloured metal that has the atomic number 73 in the periodic table. Lawrencium (Lr) is a silvery-white colored radioactive metal that has the atomic number 103 in the periodic table. The electrons occupy a series of electron shells (numbered 1, 2, and so on). It has the symbol Ts. It is an Actinoid Metal with the symbol Md. Ruthenium (Ru) is a brittle silver-gray metal that has the atomic number 44 in the periodic table. Group 17 the halogens. It is in Group 16. It has the symbol Hf. It has the symbol Sg. It is a Transition metal in Group 4. It is a Transition metal and located in Group 7 of the periodic table. The groups are the vertical columns. Some groups in the periodic table are given special names e.g. Berkelium (Bk) is a silvery colored radioactive metal that has the atomic number 97 in the periodic table. Tin (Sn) is a silver-white metal that has the atomic number 50 in the periodic table. It is a Lanthanide metal. Hassium (Hs) is a radioactive metal that has the atomic number 108 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. It has the symbol Lu. It is a Lanthanide metal. A new period begins when a new principal energy level begins filling with electrons. There are a total of 18 groups. The atomic number refers to the number of protons found in the atom of an element. Platinum (Pt) is a heavy white metal that has the atomic number 78 in the periodic table. The alkaline earths are the elements located in Group IIA of the periodic table. Livermorium (Lv) is a radioactive element that has the atomic number 116 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. The Pauli Exclusion refers to the theory that each electron can only have a unique set of the 4 quantum numbers and no two electrons can have the same quantum numbers. Each square shows the chemical symbol of the element along with its name. it has the symbol Cs. It is a Lanthanide metal. Periods 4 and 5 have 18 elements. It has the symbol Sb. Mercury (Hg) is a liquid silver coloured metal that has the atomic number 80 in the periodic table. It is in Group 17. It has the symbol Ir. The periodic table today is arranged with two different parts, the groups and the periods. If we exclude the transition metal elements, we can say that atoms which occupy the same group of the periodic table have the same number of outer electrons. It is a Transition metal and located in Group 12 of the periodic table. Flerovium (Fl) is a radioactive metal that has the atomic number 114 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. Rutherfordium (Rf) is a radioactive metal that has the atomic number 104 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. It is an Alkali Metal with the symbol Fr and is located in Group 1 of the periodic table. It is a Transition metal and located in Group 11 of the periodic table. It has the symbol Hs. It is an Actinoid Metal with the symbol Ac. It is a Lanthanide metal. What is a “group?” What does it represent? It is an Actinoid Metal with the symbol Bk. Technetium (Tc) is a silvery-gray metal that has the atomic number 43 in the periodic table. Europium (Eu) is a silvery-white coloured metal that has the atomic number 63 in the periodic table. Lanthanum (La) is a soft silvery white coloured metal that has the atomic number 57 in the periodic table. 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