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Building Blocks 1c Int 2 1234 567 89 10 111213 14 151617
Name the particles which make up an element? Atom
Name the three sub atomic particles found in an atom. Proton, electron and neutrons.
Name the particles found in the nucleus Protons and neutrons
Where are the electrons in an atom? Outside the nucleus
State the charge and mass of a proton, neutron and an electron. Mass charge proton 1 1+ electron 0 1- neutron 1 no charge
Which number identifies an element? Atomic number
Why are atoms neutral? They have the same number of positive charges and negative charges
What does the atomic number tell you about an atom? The number of positive protons in the nucleus
What is the mass number of an atom? The number of protons and the number of neutrons added together
If an atom has an atomic number of 12, how many electrons are there? 12
An element has a mass number of 19 and an atomic number of 9. How many neutrons is in the atom. 19 - 9 =10
Cl Calculate the number of protons, electrons and neutrons in the atom 35 17 protons = 17 electron = 17 neutrons = 18
Why do potassium and sodium have similar chemical properties? They have the same number of outer electrons.
How many outer electrons do the elements in groups 1 to 7 have? Group Number of outer electrons 1 2 3 4 5 6 7
What are isotopes? Atoms of the same element with the same atomic number but different mass numbers.
Explain why strontium has a relative atomic mass of 87.6 yet no strontium atom has this mass? Elements are made up of isotopes with different mass numbers. 87.6 is the average mass of the isotopes.
What term is used to describe atoms of the same element with different mass numbers. Isotopes
Building Blocks 1c Int 2 123 4567 89 10 111213 14 151716
Bellringer Write down 5 things you know about atoms.
4.3: HOW ATOMS DIFFER ATOMIC NUMBER
Mr. Olivas thinks this is him. I don’t get it!. * Smallest part of an element * Has all the properties of the element.
Atomic Structure Section The Nucleus Nucleus- contains most of the mass of an atom – Protons & Neutrons contains most of an atom’s mass – Electrons-
Atomic Structure Nucleus – contains protons and neutrons
1. Atomic Structure Objectives: Describe properties of subatomic particles Recall how element / nuclear symbols work Explain the existence of isotopes.
Calderglen High School
Unit 3: Atomic Structure Atomic Number, Mass Number, and Isotopes.
Atomic Mass & Number Isotopes The Periodic Table.
The Periodic Table. Define the following terms. 1. proton 2. neutron 3. electron 4. nucleus.
Subatomic Particles and Isotopes. Subatomic Particles Protons- Positively Charged Protons- Positively Charged Located in the nucleus Located in the nucleus.
Atoms 8.5A The student is expected to describe the structure of atoms, including the masses, electrical charges, and locations, of protons and neutrons.
Atomic Structure and the Periodic Table
Mass Number Atomic Number equals the # of... NUCLEUS ELECTRONS PROTONS NEUTRONS NEGATIVE CHARGE POSITIVE CHARGE NEUTRAL CHARGE ATOM.
STRUCTURE OF THE ATOM.
Ch. 11 Section 2 The Atom. Vocabulary To Know Proton- subatomic particle that has a positive charge and that is found in the nucleus Atomic mass unit-
The Atom and Its Parts Physical Science. The three subatomic particles are: Proton – Positive charge Electron – Negative charge Neutron – No charge.
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