What does the atomic number of an element represent?
Chemistry Escape Room – Grade 8

Quiz
•
Chemistry
•
8th Grade
•
Easy
Karent Diaz
Used 1+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The number of protons in the nucleus
The number of neutrons in the atom
The total mass of the element
The number of electrons in the last shell
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the electronic configuration of oxygen (O, atomic number 8)?
1s2 2s2 2p4
1s2 2s2 3s4
2s2 2p6
1s2 2s2 2p6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los electrones de valencia son importantes porque:
Son los electrones más cercanos al núcleo
Determinan la reactividad química
No participan en las reacciones químicas
Tienen la menor energía en el átomo
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué enlace es más fuerte en términos de energía de enlace?
Covalente
Iónico
Metálico
Van der Waals
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element is used in rechargeable batteries, such as those in cell phones and electric cars?
Sodium (Na)
Iron (Fe)
Lithium (Li)
Zinc (Zn)
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
¿Qué metal se usa en cables eléctricos debido a su alta conductividad?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué elemento se añade al agua potable para prevenir la caries dental?
Cloro
Flúor
Sodio
Yodo
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