Unit 1 Learning Outcomes
... You should be able to: • give a definition of chemistry 1B: The World is made of Legos You should be able to: • explain how atoms, elements, compounds, and chemical reactions relate to each other • give the names of the people who first coined the word “atom” and published the first modern atomic th ...
... You should be able to: • give a definition of chemistry 1B: The World is made of Legos You should be able to: • explain how atoms, elements, compounds, and chemical reactions relate to each other • give the names of the people who first coined the word “atom” and published the first modern atomic th ...
Periodic Table
... melting points. How many valence e- do they have? Differences in their reactivity is how they react with water. They are good conductors of electricity. Mg can be as hard as steel when mixed with other metals but is extremely light. How could that be important? Calcium is important for bones and mus ...
... melting points. How many valence e- do they have? Differences in their reactivity is how they react with water. They are good conductors of electricity. Mg can be as hard as steel when mixed with other metals but is extremely light. How could that be important? Calcium is important for bones and mus ...
lecture
... their atomic number, and as he did, he found that the families had similar chemical properties. • Blank spaces were left open to add the new elements he predicted would occur. ...
... their atomic number, and as he did, he found that the families had similar chemical properties. • Blank spaces were left open to add the new elements he predicted would occur. ...
Section 5.2 The Modern Periodic Table
... 13. Circle the letter of each sentence that is true about nonmetals. a. Nonmetals are poor conductors of heat and electric current. b. Many nonmetals are gases at room temperature. c. Some nonmetals are extremely reactive and others hardly react at all. d. Nonmetals that are solids tend to be mallea ...
... 13. Circle the letter of each sentence that is true about nonmetals. a. Nonmetals are poor conductors of heat and electric current. b. Many nonmetals are gases at room temperature. c. Some nonmetals are extremely reactive and others hardly react at all. d. Nonmetals that are solids tend to be mallea ...
The periodic table
... atomic mass shown on the periodic table is actually an average of the various ...
... atomic mass shown on the periodic table is actually an average of the various ...
The periodic table is a map of the elements.
... • Colorful lights in signs – tubes filled with neon, krypton, xenon, or argon gas ...
... • Colorful lights in signs – tubes filled with neon, krypton, xenon, or argon gas ...
How to Read the Periodic Table
... The top number is the atomic number. Every element has its own unique atomic number. The atomic number tells how many protons are in one atom of that element. Since no two elements have the same atomic number, no two elements have the same number of protons. In neutral (electric charge 0) atoms, the ...
... The top number is the atomic number. Every element has its own unique atomic number. The atomic number tells how many protons are in one atom of that element. Since no two elements have the same atomic number, no two elements have the same number of protons. In neutral (electric charge 0) atoms, the ...
The Periodic Table
... S-block elements- valence electrons are filling the s orbitals- Groups 1-2 D-block elements-valence electrons are filling the d orbtials- Groups 3-12 P-block elements-valence electrons are filling the p orbitals- Groups 13-18 except He F-block elements-valence electrons are filling the f orbitals- L ...
... S-block elements- valence electrons are filling the s orbitals- Groups 1-2 D-block elements-valence electrons are filling the d orbtials- Groups 3-12 P-block elements-valence electrons are filling the p orbitals- Groups 13-18 except He F-block elements-valence electrons are filling the f orbitals- L ...
Periodic Law
... The outcome of his work was the introduction of the atomic number. It was found that if Mendeleev's table was ordered by atomic number instead of atomic mass the inconsistencies in the table were eliminated. This is the blueprint for the modern periodic table. ...
... The outcome of his work was the introduction of the atomic number. It was found that if Mendeleev's table was ordered by atomic number instead of atomic mass the inconsistencies in the table were eliminated. This is the blueprint for the modern periodic table. ...
(2) for each
... Noble Gases are colorless gases that are extremely unreactive. One important property of the noble gases is their inactivity. They are inactive because their outermost energy level is full. Because they do not readily combine with other elements to form compounds, the noble gases are called inert. T ...
... Noble Gases are colorless gases that are extremely unreactive. One important property of the noble gases is their inactivity. They are inactive because their outermost energy level is full. Because they do not readily combine with other elements to form compounds, the noble gases are called inert. T ...
periodictrendsss - rlsciencecurriculum
... Some properties of an element can be estimated by averaging the properties of the elements located just above and just below the element in question. This is how Dimitri Mendeleev (1834-1907), publisher of the first useful periodic table, predicted the properties of elements unknown in his time. He ...
... Some properties of an element can be estimated by averaging the properties of the elements located just above and just below the element in question. This is how Dimitri Mendeleev (1834-1907), publisher of the first useful periodic table, predicted the properties of elements unknown in his time. He ...
Chapter 4 Notes - Riverton High School
... Noble Gases are colorless gases that are extremely unreactive. One important property of the noble gases is their inactivity. They are inactive because their outermost energy level is full. Because they do not readily combine with other elements to form compounds, the noble gases are called inert. T ...
... Noble Gases are colorless gases that are extremely unreactive. One important property of the noble gases is their inactivity. They are inactive because their outermost energy level is full. Because they do not readily combine with other elements to form compounds, the noble gases are called inert. T ...
The Periodic Table of Elements Mendeleev
... Are less reactive than group IA. Have 2 valence electrons and form 2+ ions. Calcium is fifth in abundance in the earth’s crust ...
... Are less reactive than group IA. Have 2 valence electrons and form 2+ ions. Calcium is fifth in abundance in the earth’s crust ...
The Periodic Table
... Modern Periodic Table Period or Series – a horizontal row of elements, numbered 1-7) Group or Family – a vertical row of elements (numbered 1-18 on the modern table) (long ago: roman numerals) ...
... Modern Periodic Table Period or Series – a horizontal row of elements, numbered 1-7) Group or Family – a vertical row of elements (numbered 1-18 on the modern table) (long ago: roman numerals) ...
Labeling a Blank Periodic Table
... one of a class of elements that includes a large majority of the known elements; metals are characteristically lustrous, malleable, ductile, and good conductors of heat and ...
... one of a class of elements that includes a large majority of the known elements; metals are characteristically lustrous, malleable, ductile, and good conductors of heat and ...
atomic number - Net Start Class
... their atomic mass and found that the families had similar chemical properties. Blank spaces were left open to add the new elements he predicted would occur (and he was right!!!) ...
... their atomic mass and found that the families had similar chemical properties. Blank spaces were left open to add the new elements he predicted would occur (and he was right!!!) ...
Name: Homeroom
... Elements An element is a substance that contains only one kind of atom. All atoms of an element have the same number of protons also their atomic number. At this time we know more than 110 elements, but only 90 of these occur in nature. Some familiar natural elements are : gold, silver, lead, iron, ...
... Elements An element is a substance that contains only one kind of atom. All atoms of an element have the same number of protons also their atomic number. At this time we know more than 110 elements, but only 90 of these occur in nature. Some familiar natural elements are : gold, silver, lead, iron, ...
the periodic table
... their atomic weights and typical properties, analogous elements and like atomic weights on separate cards, and this soon convinced me that the properties of elements are in periodic dependence upon their atomic weights.” --Mendeleev, Principles of Chemistry, 1905, Vol. II ...
... their atomic weights and typical properties, analogous elements and like atomic weights on separate cards, and this soon convinced me that the properties of elements are in periodic dependence upon their atomic weights.” --Mendeleev, Principles of Chemistry, 1905, Vol. II ...
Worksheet 1, UNIT THREE
... 2. This happens because as you move down the group each element has one more occupied __________________________________________ than the last one. 3. As you move from left to right across a period on the periodic table the size of an atom will __________________________________________. 4. This hap ...
... 2. This happens because as you move down the group each element has one more occupied __________________________________________ than the last one. 3. As you move from left to right across a period on the periodic table the size of an atom will __________________________________________. 4. This hap ...
Chapter 3 Introduction to the Periodic Table
... Classified some elements with similar properties into groups of three called triads Their properties varied in an orderly way according to ...
... Classified some elements with similar properties into groups of three called triads Their properties varied in an orderly way according to ...
Ch. 5.1 History of the periodic table ppt.
... Mendeleev’s Periodic Table • In order for similar elements to line up, Mendeleev left gaps in his chart. • Mendeleev stated these were undiscovered elements. He made predictions about these undiscovered elements based on the other elements in the same row. – By 1886, these elements (scandium, galli ...
... Mendeleev’s Periodic Table • In order for similar elements to line up, Mendeleev left gaps in his chart. • Mendeleev stated these were undiscovered elements. He made predictions about these undiscovered elements based on the other elements in the same row. – By 1886, these elements (scandium, galli ...
Slide 1
... The electrons that are furthest away can be shared or transferred to other atoms Valence electrons- electrons that are involved in transfer or sharing Elements have different numbers of valence electrons. These electrons will increase from left to right across a period ...
... The electrons that are furthest away can be shared or transferred to other atoms Valence electrons- electrons that are involved in transfer or sharing Elements have different numbers of valence electrons. These electrons will increase from left to right across a period ...
Group 3 element
Group 3 is a group of elements in the periodic table. This group, like other d-block groups, should contain four elements, but it is not agreed what elements belong in the group. Scandium (Sc) and yttrium (Y) are always included, but the other two spaces are usually occupied by lanthanum (La) and actinium (Ac), or by lutetium (Lu) and lawrencium (Lr); less frequently, it is considered the group should be expanded to 32 elements (with all the lanthanides and actinides included) or contracted to contain only scandium and yttrium. The group itself has not acquired a trivial name; however, scandium, yttrium and the lanthanides are sometimes called rare earth metals.Three group 3 elements occur naturally, scandium, yttrium, and either lanthanum or lutetium. Lanthanum continues the trend started by two lighter members in general chemical behavior, while lutetium behaves more similarly to yttrium. This is in accordance with the trend for period 6 transition metals to behave more similarly to their upper periodic table neighbors. This trend is seen from hafnium, which is almost identical chemically to zirconium, to mercury, which is quite distant chemically from cadmium, but still shares with it almost equal atomic size and other similar properties. They all are silvery-white metals under standard conditions. The fourth element, either actinium or lawrencium, has only radioactive isotopes. Actinium, which occurs only in trace amounts, continues the trend in chemical behavior for metals that form tripositive ions with a noble gas configuration; synthetic lawrencium is calculated and partially shown to be more similar to lutetium and yttrium. So far, no experiments have been conducted to synthesize any element that could be the next group 3 element. Unbiunium (Ubu), which could be considered a group 3 element if preceded by lanthanum and actinium, might be synthesized in the near future, it being only three spaces away from the current heaviest element known, ununoctium.