4 is the mass number of helium (mass number = number of protons + number of neutrons)
it indicate where and what to drop in
it can indicate a physical change
1. Human population and well being 2. the status of vital ecosystem services 3. global climate change 4. loss of biodiversity
I believe they indicate storms.
O: 1s22s22p4
The electron configuration of oxygen is 1s22s22p4.
4
The electronic configuration tells that the element is Oxygen and has 6 electrons in valence shell because there are 6 electrons in the 2nd energy level.
GohdImproved Answer:-Numbers were once formed on a tally stick whereas 4 notches would indicate 4 and 4 notches with a line through them would indicate 5 and so on.
4, if the trailing zeros are there to indicate the precision. 2 otherwise.
3/4 agouti, 1/4 chinchilla
4, assuming the 0 at the end is to indicate the degree of precision.
oil change service
Yes, there is a light to indicate 2 wheel drive; 4 wheel high; and 4 wheel low. I have a 1998 Ford Ranger XLT 4x4.
BIRADS 4 means suspicious for cancer. A biopsy is usually recommended in this case.
4 is the mass number of helium (mass number = number of protons + number of neutrons)