An easy way to remember the first 20 elements is to use a mnemonic, such as H. Helen Little Beryl Brown Chews Nuts On Friday Neights, NaMgAl SiPS Chlorine After Kissing Caboys. The first two letters of each of the words corresponds with the elements on the table.Know More
The first 20 elements are hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, flourine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium and calcium. Of these elements, 12 have symbols that correspond to the first one or two letters of the name, but the rest may have different letters that correspond to them. For example, the periodic symbol for potassium is K. The majority of symbols are made up of a combination of the first letter and one middle letter. The first 20 of the elements that are on the table are among the most common elements that are found throughout the universe and are some of the most important elements in the entire system.
The system for writing the elements is dependent on what the element is. Gaseous and ionic molecules are written differently and according to the type of gas or ion they contain. Elements can attach to each other and often do so to form compounds. These compounds list how many units of each element there are and organize the elements in order from the strongest to the weakest in the compound.Learn More
Students can improve at school by displaying good behavior and improving the quality of their class work. Regular attendance, good organization, effective time management and taking notes also help students advance at school.Full Answer >
There can be a number of legitimate excuses for bad grades. One could simply be that the student does not perform well in test situations. Another could be that the student is struggling with a learning disability such as dyslexia or a condition like attention deficit disorder.Full Answer >
To get better at math, practice an idea until you understand it, do more work than the minimum and find a study partner. Also use resources such as tutoring. When you learn a concept, ask questions and restate your understanding of it to your teacher or tutor.Full Answer >
Motivation does affect the learning process and even how students learn from their own behavior. Motivation affects students' goal achievement, effort level, persistence, cognitive processes and performance.Full Answer >