What can you conclude about the classification of silicon?
A)
Silicon is a noble gas and has...
What can you conclude about the classification of silicon?
A)
Silicon is a noble gas and has a full valence electron shell, is chemically non-reactive, colorless, odorless, and is a gas at room temperature.
B)
Silicon is a metal and is shiny, malleable, ductile, conducts heat and electricity, forms basic oxides, and forms cations in aqueous solution.
C)
Silicon is a nonmetal and is dull, brittle, poor conductor of heat and electricity, forms acidic oxides, and forms anions in aqueous solution.
D)
Silicon is a metalloid and has properties of both metals and nonmetals - it appears lustrous, but is brittle and a poor conductor of heat and electricity.
Consider the element sodium. It's atomic number is and equals .
A)
11; the number of protons
B)
12; the number of neutrons
C)
23; the sum of protons and neutrons
D)
23; the number of electrons
Answers: 1
Chemistry, 21.06.2019 17:00
Noble gases are the most reactive elements on the periodic table. a. true b. false
Answers: 2
Chemistry, 22.06.2019 04:00
The rules of engagement (roe) working group is often used to (select all that apply.)
Answers: 2
Chemistry, 22.06.2019 05:00
Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?
Answers: 3
Chemistry, 22.06.2019 08:30
Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains
Answers: 2
Health, 30.08.2019 16:20
Mathematics, 30.08.2019 16:20
English, 30.08.2019 16:20
Mathematics, 30.08.2019 16:20
English, 30.08.2019 16:20
History, 30.08.2019 16:20
Mathematics, 30.08.2019 16:20