1. What is the charge of the nucleus of an atom?
1/1 t2 mt

Quiz
•
Chemistry, Science
•
7th Grade
•
Medium
Minerva Florentino
Used 2+ times
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25 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
positive
neutral
negative
zero
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Configure the electrons of oxygen.(Oxygen= 8 e-)
1.6.1
2.6
2.5
2.7
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is the mass number of the atom?
Protons=8, Neutrons=9
8
9
17
1
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The proton number of Actinium is 89, its neutron is 139, what is its atomic number?
89
136
225
227
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Scientist who arranged the periodic table of elements?
Dimitri Mendeleev
Robert Boyle
Isaac Newton
Science teacher
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
They are all radioactive metals and most of them are made artificially.
actinides
lanthanides
metals
non-metals
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
These elements like Si, Ge, As are examples of what group?
metals
non-metals
metalloids
all of the above
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