Which of the following elements belong to the second period (second row) of the periodic table?
Respuesta
Aluminum (Al)
Beryllium (Be)
Lithium (Li)
Magnesium (Mg)
Carbon (C)
Argon (Ar)
Fluorine (F)
Pregunta 2
Pregunta
In the periodic table, the columns are called periods
Respuesta
True
False
Pregunta 3
Pregunta
What other names are used as synonyms for the periods of the Periodic table
Respuesta
Amount of valence electrons
Energy Levels
Electron Orbits
Rows
Columns
Pregunta 4
Pregunta
What is the group and the period of Oxygen (O)
Respuesta
Second group, 6th period
6th group, 2nd period
1st group, 6th period
6th group, 1st period
Pregunta 5
Pregunta
Which element is the found in the 3rd group and 2nd period?
Respuesta
Hydrogen (H)
Helium (He)
Boron (B)
Magnesium (Mg)
Pregunta 6
Pregunta
Select the correct answer that completes the sentence below.
Magnesium is part of [blank_start]Group 2A and period 3.[blank_end]
Respuesta
Group 2A and period 3.
Group 3A and period 2
Group 3A and period 3
Group 2A and period 2
Pregunta 7
Pregunta
Associate each of the following elementary particles with their appropriate charge
Electrons: [blank_start]Negative[blank_end]
Protons: [blank_start]Positive[blank_end]
Neutrons: [blank_start]Neutral[blank_end]
Respuesta
Negative
Positive
Neutral
Pregunta 8
Pregunta
Extra difficult question:
Identify the element drawn here