Metric Unit – Chapter 1
... Physical Change – change without change in the ____________________ of the substance – easily reversible. - Are changes of state physical changes? ___________________________ 3 states of matter: -liquid -solid -gas Chemical Change – one or more substances are converted into different (new) substanc ...
... Physical Change – change without change in the ____________________ of the substance – easily reversible. - Are changes of state physical changes? ___________________________ 3 states of matter: -liquid -solid -gas Chemical Change – one or more substances are converted into different (new) substanc ...
Atomic number
... How many protons does Calcium have? What element has 17 protons and 18 neutrons? What is its atomic number? What is its atomic mass? ...
... How many protons does Calcium have? What element has 17 protons and 18 neutrons? What is its atomic number? What is its atomic mass? ...
What`s Inside an Element
... Cut the colored paper (to match colors of periodic table) into square shapes about 2/3 to 1/2 size of the front of the tri-fold. Using the periodic table as a guide, copy the information from an element onto the colored piece of paper (atomic number, symbol, name, atomic mass). Put glue on back 1/2 ...
... Cut the colored paper (to match colors of periodic table) into square shapes about 2/3 to 1/2 size of the front of the tri-fold. Using the periodic table as a guide, copy the information from an element onto the colored piece of paper (atomic number, symbol, name, atomic mass). Put glue on back 1/2 ...
What does the Periodic Table tell us?
... Any element with an atomic number greater than ____ is man-made (created in a lab) Why is there usually a decimal place in the atomic mass number? It is due to _________________________ Isotopes – atoms of the same element with the same # of ____________ but a different # of _____________ th ...
... Any element with an atomic number greater than ____ is man-made (created in a lab) Why is there usually a decimal place in the atomic mass number? It is due to _________________________ Isotopes – atoms of the same element with the same # of ____________ but a different # of _____________ th ...
The History of the Periodic Table
... simpler substances called elements, and for centuries, scientists have looked for patterns that would explain how and why certain elements react. Our definition of the word “element” has changed as our understanding of the structure of matter has improved. Almost 25 centuries ago, the Greek philosop ...
... simpler substances called elements, and for centuries, scientists have looked for patterns that would explain how and why certain elements react. Our definition of the word “element” has changed as our understanding of the structure of matter has improved. Almost 25 centuries ago, the Greek philosop ...
Atomic Structure
... Niels Bohr (1913): e– can possess only certain amounts of energy, and can therefore be only certain distances from nucleus. ...
... Niels Bohr (1913): e– can possess only certain amounts of energy, and can therefore be only certain distances from nucleus. ...
Chapter 4: Atomic Structure
... They were discovered by using a device called a cathode ray. Electrons are extremely small and light about 1/2000 of a hydrogen atom ...
... They were discovered by using a device called a cathode ray. Electrons are extremely small and light about 1/2000 of a hydrogen atom ...
Mid-Term OR Study Guide
... Be able to complete an AUFBAU CHART: Consider the element barium. Answer the following questions: (A) What is the element symbol? How many electrons are in a neutral atom of barium? (B) Draw the orbital notation for barium using up and down arrows. (C) Write the complete electron configuration for b ...
... Be able to complete an AUFBAU CHART: Consider the element barium. Answer the following questions: (A) What is the element symbol? How many electrons are in a neutral atom of barium? (B) Draw the orbital notation for barium using up and down arrows. (C) Write the complete electron configuration for b ...
Inside the Atom 1. Atom – greek for cannot be divided. Democritus
... ii. All matter in the world looks different because of the types of atoms they contain iii. Matter exists in 4 states gas, liquid, solid or plasma iv. Matter has 2 properties physical & chemical 1. The properties of one type of matter differ from the properties of other matter because matter is ...
... ii. All matter in the world looks different because of the types of atoms they contain iii. Matter exists in 4 states gas, liquid, solid or plasma iv. Matter has 2 properties physical & chemical 1. The properties of one type of matter differ from the properties of other matter because matter is ...
ATOMS: THE BUILDING BLOCKS OF MATTER
... packed bundle of matter with a positive electric charge and bundle was called the nucleus. Composition of atomic nuclei: 1) made up of 2 kinds of particles: ____________________________ and ________________________________ 2) protons and electrons must be ___________________________________ 3) the _ ...
... packed bundle of matter with a positive electric charge and bundle was called the nucleus. Composition of atomic nuclei: 1) made up of 2 kinds of particles: ____________________________ and ________________________________ 2) protons and electrons must be ___________________________________ 3) the _ ...
Chapter 5 Atomic Structure and the Periodic Table Section 5.1
... – Explain how the atomic number identifies an element. – Use the atomic number and mass number of an element to find the numbers of protons, electrons, and neutrons. – Explain how isotopes differ, and why the atomic masses of elements are not whole numbers. – Calculate the average atomic mass of an ...
... – Explain how the atomic number identifies an element. – Use the atomic number and mass number of an element to find the numbers of protons, electrons, and neutrons. – Explain how isotopes differ, and why the atomic masses of elements are not whole numbers. – Calculate the average atomic mass of an ...
Name: : ______ Chemistry—Matter, Atoms, and More Visit the
... _________________. Matter is anything that has a _________________. As of ___________ scientists have identified ___________________ states of matter. 12. You should know about ______________, _______________, _______________, and plasmas, and a new one called ________________-__________________ __ ...
... _________________. Matter is anything that has a _________________. As of ___________ scientists have identified ___________________ states of matter. 12. You should know about ______________, _______________, _______________, and plasmas, and a new one called ________________-__________________ __ ...
Parts of an Atom
... The period an element is in is equal to the number of energy levels it has. (see the column of numbers in the upper right hand corner of each box) Properties change slowly from one end of each row to the other. Groups: Vertical columns of elements All elements in a group have similar propertie ...
... The period an element is in is equal to the number of energy levels it has. (see the column of numbers in the upper right hand corner of each box) Properties change slowly from one end of each row to the other. Groups: Vertical columns of elements All elements in a group have similar propertie ...
Notes - Science 2015-2016
... ▫ Protons and neutrons are in the _________ ? ▫ Electrons are located __________ ? ...
... ▫ Protons and neutrons are in the _________ ? ▫ Electrons are located __________ ? ...
... particles. The center of the atom is called the nucleus. Neutrons and protons are located in the atomic nucleus. Electrons are very small particles located outside the nucleus. They orbit the nucleus at fantasist speeds, like the Earth orbits the sun. Each type of subatomic particle has a different ...
genchm 113 - Angelfire
... Isotopes – atoms that have the same atomic number but different mass numbers. Isotopes of the same element have similar chemistries, forming the same types of compounds and ...
... Isotopes – atoms that have the same atomic number but different mass numbers. Isotopes of the same element have similar chemistries, forming the same types of compounds and ...
What is Matter?
... outside the nucleus called the electron cloud • Carry a negative (-) charge • Have an insignificant mass compared to protons and neutrons ...
... outside the nucleus called the electron cloud • Carry a negative (-) charge • Have an insignificant mass compared to protons and neutrons ...
Study Guide for test - Madison County Schools
... c. How can you determine how many neutrons will be in a given atom? d. For an atom to be neutral, what subatomic particles have to have been present in the same number? e. What number is unique for any given element? 10) Isotopes & Ions a. Define “isotope”: b. What is same about all isotopes of a gi ...
... c. How can you determine how many neutrons will be in a given atom? d. For an atom to be neutral, what subatomic particles have to have been present in the same number? e. What number is unique for any given element? 10) Isotopes & Ions a. Define “isotope”: b. What is same about all isotopes of a gi ...
Chemistry - Spokane Public Schools
... the nucleus is not being cancelled. An atom that has gained an electron becomes a negative ion because it has an extra negative electron that is not being cancelled by any proton. Ions are attracted to each other when they have opposite charges (table salt is made up of one ion of sodium, and one io ...
... the nucleus is not being cancelled. An atom that has gained an electron becomes a negative ion because it has an extra negative electron that is not being cancelled by any proton. Ions are attracted to each other when they have opposite charges (table salt is made up of one ion of sodium, and one io ...
File
... 1913 Ad Neil bohr proposes a theory “ Bohr Model” of the atom in which the electrons are restricted to specific shells around the nucleus. The amount of energy an electron has is related to how far it is from the nucleus. 1920’S Further discoveries were made about the behaviour of electrons in atoms ...
... 1913 Ad Neil bohr proposes a theory “ Bohr Model” of the atom in which the electrons are restricted to specific shells around the nucleus. The amount of energy an electron has is related to how far it is from the nucleus. 1920’S Further discoveries were made about the behaviour of electrons in atoms ...
Chapter 4 Powerpoint
... Atoms are not permanently changed during chemical reactions, merely rearranged. Atoms can be changed to other elements, but not by ordinary chemical reactions (nuclear). ...
... Atoms are not permanently changed during chemical reactions, merely rearranged. Atoms can be changed to other elements, but not by ordinary chemical reactions (nuclear). ...
Chapter 4.1 and 4.2 - science-b
... In a chemical reaction, one substance changes to another by reorganizing the way the atoms are attached to each other ...
... In a chemical reaction, one substance changes to another by reorganizing the way the atoms are attached to each other ...
CHEMISTRY unit 2
... molecules Huge relationship 1 mole of substance = atomic mass = 6.02 x 10 23 atoms (or molecules) Huge huge huge huge huge huge huge huge huge huge ...
... molecules Huge relationship 1 mole of substance = atomic mass = 6.02 x 10 23 atoms (or molecules) Huge huge huge huge huge huge huge huge huge huge ...