CÂT DE BINE CUNOSC TABELUL PERIODIC.
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Minodora Besleaga
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cine a elaborat Tabelul Periodic?
Henry Cavendish
Dimitri Mendeleev
Antoine Lavoisier
John Dalton
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Numărul electronilor în atom este egal cu:
Valoarea sarcinii nucleului
Masa atomică relativă
Numărul de neutroni
Numărul de protoni
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Masa atomică relativă pentru clor
36
35
35,5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La elementele subgrupelor principale numărul electronilor de pe stratul exterior este egal cu:
Numărul grupei
Numărul perioadei
Numărul atomic
Sarcina nucleului
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Metal
Oxigen
Fosfor
Cupru
Azot
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pentru Sulf, sunt cunoscute valențele
I, II, III
II, IV, VI
IV
VI
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elemen din perioada III, cu sarcina nucleului +12
Sodiu
Magneziu
Aluminiu
Siliciu
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