Zadanie 2c
Use the position of selenium in the periodic table to outline what is known about the electron configuration of its atoms. Give one piece of information from the group number and one from the period number.
Periodic table position and electron configuration
Deduce the electron configuration of an element up to Z = 36 from its period, group and block, and vice versa, using the period number as the outer energy level and the group as the number of valence electrons.
Tę umiejętność sprawdza 10 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 10 Otwórz w wyszukiwarce z filtrami
Zadanie 13
Element 117, tennessine, was first synthesized in 2010. In which block of the periodic table is it placed? A. s B. p C. d D. f
Zadanie 15
The periodic table is divided into the s, p, d and f blocks. Which characteristic of an element determines the block in which it is placed? A. the number of protons in its nucleus B. the sublevel occupied by its highest-energy electrons C. the number of main…
Zadanie 7
Which statements about the organization of the elements in the periodic table are correct? I. Elements with atomic numbers 3, 11 and 19 have atoms with the same number of electrons in the outer energy level. II. Elements with atomic numbers 7, 15 and 33 have…
Zadanie 4a
Tellurium has atomic number 52. Using the position of tellurium in the periodic table, deduce two features of its electron configuration.
Zadanie 7
Which is the electron configuration of an atom of an element in group 14, period 4? A. [Ar] 4s2 3d2 B. [Ar] 4s2 3d10 4p2 C. [Ne] 3s2 3p2 D. [Ar] 4s2 3d10 4p4
Zadanie 8
Which of the following statements can be deduced from the period in which an element is placed? I. The number of occupied main energy levels II. The number of protons in the nucleus III. The number of electrons in the outer energy level A. I only B. I and II…
Zadanie 9
The periodic table in the data booklet shows 118 elements. A new element with atomic number 120 is made. It would be expected to have chemical properties most similar to which element? A. Francium B. Radium C. Actinium D. Radon
Zadanie 9
The periodic table currently ends at element 118. A new element with atomic number 120 is synthesized. In which group of the periodic table would it be placed? A. Group 1 B. Group 2 C. Group 3 D. Group 18
Zadanie 8
Which element is found in group 6 and period 5 of the periodic table? A. Chromium B. Molybdenum C. Tellurium D. Tungsten