Sixth Grade Chemistry
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- Matter is anything that has mass and takes up ____.
- Space
- Matter is anything that has ___ and takes up space
- mass
- _______is anything that has mass and takes up space.
- Matter
- The entire universe in all space and time is made up of _______
- Matter
- All matter comes in the form of tiny particles called
- ATOMS
- The varieties of atoms are called _____ Examples: Carbon, oxygen, gold, silver, copper, helium, einsteinium, californium etc
- Elements
- ____ are the smallest unit of an element
- Atoms
- The smallest unit of an element is called a(n) ___ and can not be divided or split and still have all the properties of an element
- Atom
- True/False Atoms can be divided and still keep all of their properties
- False! Split an atom of any element and it is no longer that element
- T/F If you split an atom of the element carbon you still have the element carbon
- False!
- The 3 particles in atoms are the p___ the n___ and the e____.
- Proton Neutron Electron
- Proton Neutron Electron Which is (+)?
- Proton
- Proton Neutron Electron Which is (-)?
- Electron
- Proton Neutron Electron Which is (neutral)?
- Neutron
- Proton Neutron Electron Which has almost no mass so weighs basically nothing??
- Electron
- Proton Neutron Electron Which one gives us the elements unique atomic number?
- Proton
- Proton Neutron Electron Which two make up the mass of the atom?
- Proton Neutron
- Proton Neutron Electron Which two form the atomic mass of the atom?
- Proton Neutron
- The atomic number of the atom is the number of ____ in the atom.
- Protons
- On the periodic table the number above the chemical symbol for the element is called the ____ ___ and is the number of ___ in the element.
- Atomic Number Protons
- Atomic Number - # protons Atomic Mass- # of Protons and ______
- Neutrons
- Protons are found outside or inside the nucleus of the atom
- Protons are inside the nucleus with the neutrons
- The nucleus contains both protons and ____ in the nucleus.
- Neutrons
- The nucleus has both ____ charges and ____ charges.
- (+) --from protons (Neutral)--from neutrons
- There are two SUBATOMIC particles in the nucleus- they are ...
- Protons Neutrons
- There is one SUBATOMIC particle outside the nucleus of the atom and it has practically no mass. It's the ___
- electron
- Of the 3 subatomic particles in an atom, ___ (number) are in the nucleus and ___(number) is outside the nucleus.
- two-inside (neutrons and protons) one (electrons)
- The neutron, a subatomic particle in nucleus has no charge so we say that it is ____.
- Neutral
- 6- atomic # Carbon 12- atomic mass Look at the element above. How many protons, electrons and neutrons does it have?
- protons = 6 (atomic #) electrons = 6 (same as # protons) neutrons = 12 - 6 = 6
- Copper Symbol: Cu Atomic Number: 29 Copper Atomic Weight: 63 # Protons? # Neutrons? # Electrons?
- # Protons- 29 # Neutrons- 64 # Electrons 29
- 26 Iron 55 # Protons? # Neutrons? # Electrons?
- # Protons? 26 # Neutrons? 55-26 = 39 # Electrons? 26
- : P 15 Phosphorus 30.9738
- Atomic # 15 Atomic Weight 30.9738
- 15 Phosphorus 30.9738 # of electrons?
- 15 is # of electrons
- When an atom has the same number of protons (+) as electrons (-) , we say that the atom is __
- Neutral
- A neutral atom has the same number of protons (+) as ____(-).
- Electrons
- What is the symbol for Oxygen in the periodic table of the elements?
- "O"
- In a neutral atom, the number of ___ equals the number of ___.
- protons + electrons
- The atomic mass = # protons + # _____
- Neutrons
- These subatomic particles are found in clouds or shells outside the nucleus of the atom
- electrons
- If the number of protons is greater or less than the number of electrons, there are more or less positives than negatives and so the atom is not neutral. It is _____
- Charged (it has a + or _ charge)
- An atom that is charges is called a(n)
- ION
- A negatively charged particle has (more or fewer) protons than electrons??
- fewer protons (fewer + and so more -)
- A postively charged particle has (more or fewer) protons than electrons??
- more protons (more + and so more positive)
- If an ion has a -1 charge and it has 11 Protons, how many protons and electrons does it now have?
- Still 11 protons but now has 12 protons
- When atoms become ions, only the number of ___ changes.
- electrons- these are the only particles that can come or go.
- A postive ion still has the same number of protons as when it was an atom but it now has one more or one fewer electron??
- One fewer
- Each element of the periodic table is represented by a s______.
- SYMBOL Ex: Oxygen's symbol is "O"
- The P__ Table of the E___ shows the symbol, atomic number and the atomic mass of all elements in the world.
- Periodic Table of the Elements
- No charge means ...
- NEUTRAL
- True/False An atom's charges are neutral
- True
- Why are an atom's charges neutral?
- The number of protons (+) = number of electrons (-)
- Subatomic particles called ___ are outside the atom's nucleus in an "orbit shell."
- Electrons
- A simple substance made of only one type of atom is called a(n) _____ (examples: carbon, hydrogen, silicon,etc)
- Element
- A substance that contains 2 or more chemical elements bonded together is called a C____
- Compound