wordy answer
when atoms of nitrogen and oxygen combine, will they form ionic or covalent bonds? Explain your answer
Covalent, they dont combine easily with elements
a noble gas has
an ____ is a pure substance that contains two or more elements
compound
a sodium atom that is positively charged is written as
Na+
18. predict which electrons will have higher energy.
19. Predict which electron have a stronger attraction to the nucleus.
18. step 3
29. step 1
what does the formula H2 stand for?
molecule of hydrogen
at the center of an atom is a nucleus containing ____
neutrons and electrons
a molecule consisting of two hydrogen atoms joined in a covalent bond would be written as _____
H2
a molecule is the neutral particle formed when _____
atoms share electron
not enough questions read the answer.
take 100 points from 1 other team
Sodium iodine can be table salt, sodium chloride, to produce iodized salt . What do these two coumpounds have in common?
they both have sodium ionic bonded to other ions this is an ionic compound.
the bond that forms between atoms when they share electrons is call an ____ bond
ionic
an ion is an atom that has ____ or _____ an electrons
Gained or lost
when an atom gains an electron and becomes negatively charged, we refer to it as an ____
negative ion
what do the negative and positive signs represent
what type of charge
describe the bonds between the hydrogen atoms and the oxygen atom in a water molecule
oxygen has a greater attraction for electrons, because hydrogen doesn't need need to share unequally if forms a polar covalent bond.
A _____ is a covalent bond involving two pairs of electrons
double bond
when a positively charged ion and a negatively charged ion are attracted to each other the bond they form is referred to as an ____ bond
covalent
atoms form ____ with other atoms and become more stable
chemical bonds
what can you conclude about the location of the two electrons after bonding
one electron went to each chlorine atom
Why are electrical wires made with metals? Refer to chemical bonds in your answer
metal can conduct electricity, because of there chemical bonds between metals, because it allows electricity to travel easily.
1. for a neutral atom of an element, the number of is ___ always the same
2. a molecule of carbon monoxide, CO, has ____ atoms
1.protons and electrons
2. Two
1. an ____ is a combination of chemical symbols and numbers that tell which elements are present in a molecule and how many atoms of each element are present
2.when two or more atoms share electrons unevenly , resulting in a positive charge on one end and a negative charge on the other, they are together by a ____ bond
1. Formula
2. Polar
removing electrons that are closer to the nucleus takes ____ than removing electrons that are farther away from the nucleus
less energy
what do you observe a bout the outer energy level of the magnesium atom before and after it bonded with chlorine.
before magnesium only has 2 electrons in it's outer layer after it lost electrons and it gets balanced.