What type of elements make up most of the periodic table?
nonmetals
metals
metall...
Chemistry, 30.08.2019 22:40 lakinbacon4
What type of elements make up most of the periodic table?
nonmetals
metals
metalloids
vertical columns in the periodic table are known as:
question 2 options:
periods
groups
families
both b and c
about how many elements are found on the periodic table?
question 3 options:
25
50
110
200
true or false? elements in the same row have similar properties.
true
false
true or false? elements in the same column have the same number of valence electrons.
true
false
what are the particles on the outer shell of an atom called?
question 6 options:
valence electrons
orbiting protons
neutrons
nuclei
Answers: 2
Chemistry, 21.06.2019 17:10, shafferakr6
There are 6.022 x 10^23 atoms of hg in 1 mole of hg. the number of atoms in 4.5 moles of hg can be found by multiplying 4.5 by 6.022 x 10^23 a. 2.7 x 10^24 b. 27 x 10^23 c. 2.71 x10^24 d. 27.099 x 10^23
Answers: 3
Chemistry, 22.06.2019 02:00, hemolelekeakua
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
Chemistry, 22.06.2019 11:40, jerrysandoval22
Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both
Answers: 2
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