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SCIENCE TEST 7

CHEMISTRY

QuestionAnswer
THE SUM OF THE NUMBER OF PROTONS AND NEUTRONS IN AN ATOM ATOMIC MASS
SPECIAL MACHINES THAT SMASH ATOMS PARTICLE ACCELERATORS
RUSSIAN CHEMIST WHO DEVELOPED THE PERIODIC TABLE TO CLASSIFY KNOWN ELEMENTS DMITRI MENDELEEV
SUBSTANCES CONTAINING ONLY ONE KIND OF ATOM ELEMENTS
METALS, SEMI-METALS, ALKALI METALS, AND NON METALS ARE EXAMPLES OF CLASSIFYING ELEMENTS INTO..... CATAGORIES
T/F. ELECTRONS HAVE A POSITIVE CHARGE, AND NEUTRONS HAVE NO CHARGE. FALSE. ELECTRONS HAVE A NEGATIVE CHARGE
T/F. PROTONS AND ELECTONS ARE FOUND IN THE NUCLEUS FALSE. PROTONS AND NEUTRONS ARE FOUND IN THE NUCLEUS.
T/F. ELECTRONS HAVE A POSITIVE CHARGE AND ARE NOT PART OF THE NUCLEUS FALSE POSITIVE
T/F. ELECTRONS ARE VERY LIGHT. TRUE
T/F. NEILS BOHR DEVELOPED A SIMPLIFIED MODEL OF THE ATOM TO HELP PEOPLE UNDERSTAND THE ATOM. TRUE
T/F. AN ATOM IS THE SMALLEST PIECE OF AN ELEMENT. FALSE AN ELECTRON IS THE SMALLEST PIECE OF AN ATOM
T/F. THE BIBLE TELLS US THAT THROUGH FAITH WE MUST ACCEPT SOME THINGS THAT GOD HAS MADE BUT THAT ARE NOT COMPLETELY VISIBLE TO MAN TRUE
WHAT ARE THE THREE BASIC PARTS OF THE ATOM? PROTONS, NEUTRONS, AND ELECTRONS
IF THE ELEMENT CARBON HAS 6 PROTONS, HOW MANY ELECTRONS DOES IT HAVE? HOW DO YOU KNOW? 6 ELECTRONS, BECAUSE IN A NORMAL ATOM THERE IS THE SAME NUMBER OF ELECTRONS AND NEUTRONS.
WHY DO SCHENTIST USE SYMBOLS T WRITE ELEMENTS AND COMPOUNDS? BECAUSE THE SYMBOLS ARE QUICKER AND EASIER TO WRITE THAN THE FULL NAME.
HORIZONTAL ROWS OF THE PERIODIC TABLE PERIODS
VERTICAL COLUMNS OF THE PERIODIC TABLE GROUPS
ELEMENTS THAT POSSESS SIMILAR CHARACTERISTICS AND REACT SIMILARLY WITH OTHER ELEMENTS, THEY ARE SOMETIMES COLOR CODED ON THE PERIODIC TABLE CATEGORIES
A COMPLEX COMPOUND BREAKS INTO TWO OR MORE SIMPLER COMPOUNDS DECOMPOSITION
A NEW SUBSTANCE FORMS WHEN MOLECULES COMBINE SYNTHESIS
WHAT DOES THE CHEMICAL FORMULA H2O TELL A SCIENTIST? 2 HYDROGEN ATOMS + 1 OXYGEN ATOM
COMMON NAME FOR H2O WATER
HOW IS THE COMPOUND H20 DIFFERENT FROM THE ELEMENTS HYDROGEN AND OXYGEN? THE TWO ARE DIFFERENT BECAUSE THE COMPOUND IS FROM TWO OR MORE DIFFERENT ELEMENTS. THE ELEMENTS ARE MADE UP OF ONLY ONE KIND OF ATOM.
WHAT IS THE DIFFERENCE BETWEEN CONVALENT BONDING AND IONIC BONDING? THE DIFFERENCE IS WITH CONVALENT BONDING ATOMS SHARE ELECTRONS. WITH IONIC BONDING NEGATIVELY AND POSITIVELY CHARGED IONS ATTRACT TO EACH OTHER.
T/F IN A CLOSED SHELL ATOM THE OUTERMOST SHELL IS COMPLETELY FILLED UP. TRUE
T/F A NEGATIVE ION HAS GAINED ELECTRONS TO FILL ITS OUTER SHELL. TRUE
T/F THE SUBSCRIPT 2 IN H2O TELLS US THAT THE MOLECULE HAS TWO ELECTRONS OF OXYGEN. FALSE OXYGEN
T/F A NEGATIVE ION HAS GIVEN AWAY ELECTRONS FROM ITS OUTER SHELL. FALSE POSITIVE
T/F IONIC BONDING OCCOURS WHEN ATOMS SHARE ELECTRONS. FALSE CONVALENT BONDING
T/F IONIC COMPOUNDS SUCH AS SALT FORM CRYSTALS. TRUE
EXPLAIN WHY ALL COMPOUNDS ARE MOLECULES BUT NOT ALL MOLECULES ARE COMPOUNDS. THE REASON IS A COMPOUND IS A SUBSTANCE MADE UP OF TWO OR MORE ELEMENTS. a MOLECULE IS MADE UP OF TWO OR MORE ATOMS.
WHAT DOES THE CHEMICAL FORMULA H2CO3 TELL YOU ABOUT CARBONIC ACID? IT TELLS US THAT ITS MADE UP OF 2 HYDROGEN, 1 CARBON, AND 3 OXYGEN.
Created by: lucybelle