the periodic table part one please get right

1. what was the key characterisitic by which dimitri mendeleev arrange his periodic table?

electron configuration

decreasing atomic number

increasing atomic mass 

increasing atomic number

2 which series of atomic numbers represents the ordering of consecutive elements within the periodic table

1,2,3,4

10,20,30,40

1,3,5,7,

2,4,8,16

3 what does the periodic law state

when elements are arranged in order of increasing atomic size there is a recurring pattern to their physical and chemical properties within the group

when elements are alphabetized there is a periodic pattern to their physical and chemical properties within a period

when elements are arranged in order of increasing atomic number there is recurring pattern to their physical and chemical properties

when elements are arranged in order of increasing atomic mass there is a recurring pattern to their physical and chemical properties

4what is true of elements in a period on a perodic table

they have similar properties that repeat across the next period

they have different properties that show no pattern

they have different properties that repeat across the next period

they have similar names

5 which element has the same number of energy levels as bromie( BR) and the same number of valence electrons as barium (Ba)

berylilim (Be)

calcium(Ca)

potassium(K)

cadmium(Cd)

6 which element has 4 energy levels

ceslium (Cs)

nubidium(Rb)

sodium (Na)

potassium(K)

7which of the following elements has the most properties in common with molybdenum (Mo)

(Mn)

(Fe)

(V)

(Cr)

8which element has the same number of valence electrons as calcium (Ca)

Ne

Ba

K

S

9 what happens to the atomic size of the elements as one goes from bottom to the top of a group

atomic size stays the same as one moves from bottom to top ina group

atomic size decreases as on moves from bottom to top in a group

atomic size changes randomly as one moves from bottom to top in a group

atomic size increases s one moves from bottom to top in a group

10which of the following places the elements in the correct order of increasing first ionization energy

F,O,N

Be, Mg, Ca

Cl, S. P

P, S, Cl

 

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