Over a million students use our free study notes to help them with their homework
Reactivity will decrease as you travel down group 7 in the periodic table. Group 7 elements need to gain an electron to become stable as they need 8 electrons in their outer shell. Group 7 elements only c...
Atoms have a small nucleus surrounded by electrons. The Nucleus- It is in the middle of the atom It contains protons and electrons Protons are positively charged +1 Neutrons have n...
(See word doc for step by step solution)
Water is a highly ordered material. When something dissolves in water, some of these O-H bonds are broken. This requires heat energy. The water molecules can then form attractive interactions to solute io...
The first ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms from its valence shell.
←
356
357
358
359
360
→
Internet Safety
Payment Security
Cyber
Essentials
Comprehensive K-12 personalized learning
Immersive learning for 25 languages
Trusted tutors for 300 subjects
35,000 worksheets, games, and lesson plans
Adaptive learning for English vocabulary
Fast and accurate language certification
Essential reference for synonyms and antonyms
Comprehensive resource for word definitions and usage
Spanish-English dictionary, translator, and learning resources
French-English dictionary, translator, and learning
Diccionario ingles-espanol, traductor y sitio de apremdizaje
Fun educational games for kids
