Question

sum it up!
match each statement with the correct word from the word bank to the right.
1 the russian scientist who developed an early periodic table in 1869.
2 the elements of the first periodic table were arranged by their
3 this number on an elements square on the periodic table indicates the number of protons in its atoms.
4 the one - or two - letters that represent an element on the periodic table.
5 to be repeated in a pattern.
6 the name for the seven rows that go across the periodic table.
7 the name for the 18 columns that go down the periodic table.
8 the elements are located in certain groups and families based on their
9 the property that means a certain shine that a metal has.
10 the property that means the substance can be easily flattened or shaped without breaking.
11 if heat and electricity run easily through a substance, then it is a good
12 on either side of this feature of the periodic table are the metalloids.
13 the elements that have luster, good conductivity and malleability.
14 the elements located to the right of the staircase on the periodic table.
circle one:
how are you feeling about the basics of the periodic table?
ive got this
i think i get it.
i dont get it.

Explanation:

1. Dmitri Mendeleev is the Russian scientist who developed an early Periodic Table in 1869.
2. The elements of the first Periodic Table were arranged by their atomic mass (although modern tables use atomic number).
3. The atomic number is the number on an element's square on the Periodic Table that indicates the number of protons in its atoms.
4. Chemical symbols are one - or two - letters that represent an element on the Periodic Table.
5. Periods are the seven rows that go across the Periodic Table.
6. Groups are the 18 columns that go down the Periodic Table.
7. Elements in certain groups and families are based on their properties.
8. A metal has the property of being malleable (can be flattened or shaped without breaking).
9. Conductors (if heat and electricity run easily through a substance, then it is a good conductor).
10. Metalloids are on either side of the staircase feature of the Periodic Table.
11. Non - metals are the elements located to the right of the staircase on the Periodic Table.

Answer:

1. L. MENDELEEV
2. C. ATOMIC MASS
3. H. ATOMIC NUMBER
4. A. CHEMICAL SYMBOL
5. G. PERIODS
6. E. GROUPS
7. I. PROPERTIES
8. D. MALLEABLE
9. K. CONDUCTOR
10. J. METALLOIDS
11. F. NONMETALS
12. M. STAIRCASE
13. B. METALS