A bond between a metal and non metal where the atom either gains or loses electrons.
200
What is a chemical property?
A property that is only observed during a chemical reaction.
200
What is a chemical change?
a change where a new substance is formed
200
What is a neutron's charge and where is it found?
no charge and found in the nucleus
200
Which element has 8 total electrons?
Oxygen
200
What is a covalent bond?
A bond between 2 non metals that share electrons.
300
Physical or Chemical?
RUSTING
Chemical
300
Physical or Chemical
A hockey player gets hit in the mouth and breaks his tooth
Physical
300
What is a electron's charge and where is it found?
negative and found outside of the nucleus
300
How many valence electrons does Sodium have?
1
300
On scrap paper.... draw the bond for NaCl
See Ms. Kapit for answer :)
400
Physical or Chemical?
Hardness
Physical
400
Physical or Chemical?
Ms. Kapit gets angry and rips up her lesson plans!
physical change
400
What are the outer most electrons called and what are they used for?
valence electrons
400
How many valence electrons does Boron have?
3
400
Draw the bond for C02
See Ms. Kapit for answer! :)
500
When is the only time a chemical property can be observed?
During a chemical reaction.
500
Physical or Chemical?
A student mixes two chemicals together. He observes both a color change and bubbles.
chemical change
500
What is a positively or negatively charged atom called?
An ion.
500
How is the periodic table used to tell which elements are most likely to bond?
The groups tell us how many valence electrons. The number of valence electrons tells us which elements are likely to bond.
500
What is the difference between an ionic and covalent bond?
An ionic bond is a bond between a metal and non metal that either gain or lose an electron. A covalent bond is between 2 non metals and shares electrons.