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Chemistry Chapter 4 Review Test 2

Test Description: Atoms and bonding

Instructions: Answer all questions to get your test result.

1) In the chemical formula for an ionic compound, which item is written first?

AThe positive ion BThe negative ion CThe charges DThe subscripts

2) Electrons involved in bonding are the ______________

AProtons BValence electrons CPositively charged DNeutrons

3) What suffix do you put on the end of name of the negative ion?

A-gen B-ide C-ful D-ate

4) Which of the following is a property of an ionic compound?

AThey form hard, brittle crystals BThey have low melting points CThey contain no charged particles DThey have low boiling points

5) Which of the following best describes a metal crystal?

AMetal stores held together by ionic binds BMetal atoms held together by covalent bonds CPositive metal ions surround by free flowing valence electrons DNeutral metal ions surrounded by valence electrons

6) The atomic number of an element is based on the ---------

AThe sum of the protons and neutrons BNumber of protons in the atom CNumber of neutrons in the stim DNumber of electrons around the nucleus

7) A mixture of 2 or more metals is called a(n) __________

AAlloy BMetal CAtom DMetallic bond

8) What is a double bond?

AWhen 2 pairs of electrons are shared between 4 atoms BWhen 1 pair of electrons are shared CWhen 2 pairs of electrons are shRed DWhen 3 pairs of electrons are shared

9) When an atom gains an electron is becomes a(n) _______________

ANegative ion BRadioactive CPositive ion DNeutral ion

10) Elements is Group 17 of the periodic table have _____ valence electrons?

A7 B8 C5 D17

*select an answer for all questions

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