What part of an atom is the MASS of an element is concentrated?
It refers to the elements that have the same number of protons but different number of neutrons.
What do you call an atom that has charged?
What do you call an atom with an equal number of protons and electrons?
Which subatomic particle of an atom determines the atom?
DEVELOPMENT OF THE PERIODIC TABLE
LEARNING TARGETS
01 02 Trace the development of the periodic table from observations based on similarities in properties of elements . Determine how scientists developed periodic table.
03 Appreciate the value of elements by listing atleast five (5) common elements that are used in daily life.
elemental transpo-tab!
ACTIVITY RULES Listen to the instructions carefully. Respect other’s opinions. Make your voice loud and clear when communicating, and participate.
What is/are the basis of your arrangement? Why? 2. H ow do you think other things could also be arranged, like for for example the different elements of the periodic table?
PERIODIC LEGENDS’S WORLD
TOKENS OF LEARNING
ELEMENTAL MASTERY
1. Dobereiner’s Triad is composed of how many elements per triad? A. Trials B. 3 C. 3x4 D. Tri
2. Newlands Octave was compared to? A. Octopus legs B. Octopi C. 8 legs D. Musical Octaves
3. He is the scientist who proposed that the atomic number is the fundamental property of arranging elements. A. Dobereiner B. Mendeleev C. Moseley D. Newlands
4. How many elements are present during Dobereiner? A. 52 B. 53 C. 55 D. 54
5. How many elements are present during Newlands? A. 51 B. 61 C. 66 D. 56
6. How many elements were present during Mendeleev? A. 63 B. 63.5 C. 64 D. 64.5
7. He is the father of the Modern periodic table of elements. A. Mendiliive B. Mendeleeve C. Mendleave D. Mendeleev
8. The only symbol you can’t find in the periodic table A. G B. C C. J D. K
9. Which scientist/s used atomic mass as the basis for arranging the elements. Choose among the names given. i. Henry ii. Henry and Mendeleev iii. Mendeleev and Newlands iv. Dobereiner A. I, II and III C. III only B. II, III, and IV D. III and IV
10. Why is it important to classify the elements? A.To make the periodic table colorful. B. To use them incorrectly. C. To know that they’re not useful. D. To make sure that they are not incorrectly used.
ASSIGNMENT S earch for at least five (5) common elements that they are using for everyday life and will explain the importance of these elements.