week04 - The Modern Periodic Table The elements are...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 The Modern Periodic Table • The elements are arranged by increasing atomic number (Z), and in columns and rows to emphasize periodic properties. •T h e c o l u m n s , a . k . a . Groups (families), are OUR Choice or An Arabic number (1-18) and designated by an Arabic number (1 -7) Main-Group Elements: trivial names A lk a li lk e e a r t h N o b le g a
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Predicting Ions (Figure 2.23) • Group I or II tend to lose 1 or 2 electrons, respectively • Group V, VI or VII tend to gain 3, 2 or 1 electrons, respectively ( excluding metalloids/metal ) Practice – Predicting Charges for Ions Write the symbol for the ion that each of the following elements is predicted to form: 1. Beryllium 2. Aluminum 3. Phosphorus 4. Chlorine 5. Oxygen Ch 3 Chemical Compounds • Ionic and Molecular Compounds
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/14/2011 for the course CHEM 111 taught by Professor Cao during the Fall '07 term at Purdue University-West Lafayette.

Page1 / 5

week04 - The Modern Periodic Table The elements are...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online