Electron configuration, periodic table Flashcards

1

The electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d³ represents which uncharged element?

2

Magnesium has twelve protons. What is its core charge?

3

Chemistry joke question: What's Batman's favourite element?

4

Helium belongs to which block on the periodic table?

5

Chlorine has 17 electrons. The correct electronic configuration is:

6

An early periodic table was created in 1869 by who?

7

Which elements are all from period 2?

8

Lithium has a higher electronegativity than potassium. Which statement is true?

9

Why do we order the periodic table according to atomic number instead of relative atomic mass?

10

The core charge of an atom is the same for elements in the same __________

11

Order the following elements from highest core charge to lowest:

Electron configuration, periodic table