Chemistry Review Atomic Structure

Atoms, Element, Molecules and Compounds Notes Atom, Element, Molecules and Compounds Examples Vocabulary Match the word to its definition Proton Positively charged particle in the nucleus of the atom. Determines the element. It is the Atomic Number . Neutron Particles with no charge found in the nucleus of atom Electron Negative particles in orbits around the nucleus. Atom The smallest part of an element or molecule. Building block of all things. Nucleus Center of the atom; contains protons and neutron Molecule Any combination of two or more atoms, whether the same or different Compound Any combination of two or more elements Element A substance in which all the atoms are the same Orbital (shells) Location of electrons in the atom. Use this Periodic Table to complete the questions below. Notes The Atomic number is the number located at the top of the element box. The atomic number is equal to the number of protons in the nucleus of an atom. The Atomic mass is the average mass of an atom.Valence electron is the number of electrons in the outer shell of an atom.Count the number of electrons in the outer orbit or shell. There are 6 electrons in the outer shell, therefore the valence is 6.Periods are numbers down the sides of the Periodic Table of Elements. The number represents the number of orbitals the element has to hold electrons.Groups (families) are the numbers across the top of the Periodic Table of Elements. This number represents the same number of Valence electrons and similar chemical properties. Find the atomic number of the following element. K atomic number is 19 Find the atomic number of the following element. Fe atomic number is 26 Find the atomic number of the following element. Ni atomic number is 28 Find the elements. Write the element symbol Which element has 8 protons? O Find the elements. Write the element symbol Which element has 6 protons? C Find the elements. Write the element symbol Which element has 15 protons? P How many? Use the image below and answer how many of each atom, element, compound and molecule there are in the image.*do NOT write the number, put the numerical number.Example: 4 3 1 1 2 How many? Use the image below and answer how many of each atom, element, compound and molecule there are in the image.*do NOT write the number, put the numerical number.Example: 4 2 1 1 0 How many? Use the image below and answer how many of each atom, element, compound and molecule there are in the image.*do NOT write the number, put the numerical number.Example: 4 4 2 1 1 How many? Use the image below and answer how many of each atom, element, compound and molecule there are in the image.*do NOT write the number, put the numerical number.Example: 4 3 2 1 1 Drawing an Atom Draw a picture of an atom, using the Bohr Model. Be sure to label the proton, neutrons, electrons and orbitals. How many orbitals does the element Helium have?*write out the number do NOT put the numerical number.Example: four Helium has one orbital.