Physical Science Review 4.2: Question Preview (ID: 14088)


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Rows in the periodic table are called _________ and columns are called __________
a) periods; columns b) periods; groups c) rows; groups d) rows; columns
Elements in the same ____________ have _____________ properties
a) group; similar b) group; different c) period; similar d) 2 of the choices
The expanded periodic table includes lanthanides and actinides in periods______ in between groups ___________
a) 6&7; 2&3 b) 2&3; 6&7 c) 3&4; 6&7 d) 6&7; 3&4
Which of the following is incorrect regarding chemical symbols?
a) They are derived from English or Pig Latin b) They are 1 or 2 letters c) They are abbreviations d) none of the choices
Elements have an average atomic mass on the periodic table because
a) Different isotopes have a different number of neutrons b) Different isotopes have a different number of protons c) Different ions have a different number of neutrons d) Different ions have a different number of protons
What conditions are necessary in order for elements to form?
a) high temperature b) high pressure c) plasma state of matter d) all of the choices
When elements form:
a) pressure squeezes nuclei together and fusion occurs b) pressure squeezes nuclei together and fission occurs c) pressure pushes nuclei apart and fusion occurs d) pressure pushes nuclei apart and fission occurs
When fusion occurs, atomic nuclei ___________ and ______________ a lot of energy
a) combine; release b) combine; absorb c) split; release d) split; absorb
In the sun fusion most often occurs between isotopes of
a) hydrogen b) helium c) lithium d) beryllium
Which of the following is incorrect regarding supernovas?
a) they occur when stars explode b) they have temperatures above 1 000 000 000 degreees Celcius c) They only have enough energy to make iron d) They are believed by scientists to have created all matter billions of years ago
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