Atomii de azot şi de fosfor au acelaşi număr de electroni de valenţă

ATOMUL -PARTEA VI

Quiz
•
Science
•
9th Grade
•
Medium
IRINA MARIN
Used 5+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elementele chimice sodiu şi magneziu
se află în aceeaşi grupă a Tabelului periodic
formează anioni
caracter electronegativ
formează cationi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Are caracterul nemetalic cel mai pronunțat:
bromul;
fluorul;
clorul
iodul
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Numărul atomic reprezintă numărul de nucleoni din atomul unui element chimic.
A
F
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Are în învelișul electronic un număr mai mic de electroni decât numărul protonilor din nucleu
Cu
Cl-
Al3+
S
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sodiul și clorul sunt elemente chimice care au caracter electrochimic diferit
A
F
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Izotopii unui element chimic au același număr de neutroni în nucleu
A
F
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