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General Science Elements and metals
Question 146 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
The atoms and molecules in the floor of this classroom
don't move at all | |
slide from place to place | |
shake back and forth in place | |
move only when someone walks across the floor |
Question 147 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
In the chemical symbol for nitrogen gas, N2, what does the "2" represent?
two nitrogen compounds | |
two nitrogen atoms | |
two types of nitrogen gas | |
two nitrogen symbols |
Question 148 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Atoms of the same element with different numbers of neutrons are called .....
isotopes | |
metalloids | |
radioactive elements | |
metals |
Question 149 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Is Si - Silicon a
Nonmetal | |
Metalloid | |
Metal | |
None of these |
Question 150 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
True or False: Solid has a definite shape and volume?
True | |
False | |
Either A or B | |
None of these |
There are 150 questions to complete.