Potassium Nitrate
Potassium Nitrate is a(n)
Molecule
Elements are organized on the periodic _____
Table
Is the Sun going to explode eventually?
No.
13.8 billion years.
Potassium Nitrate is mostly composed of which type of element?
Protons have a ____ charge, neutrons have a ____ charges, and electrons have a ____ charge.
Positive, neutral, and negative.
What type of star is the Sun?
Yellow dwarf main-sequence star.
What are the three main theories of our Universe's creation?
Big Bang Theory, Oscillating Universe Theory, and Steady State Theory.
Potassium Nitrate (KNO3) is composed of how many of which elements?
One potassium atom, one nitrogen atom, and three oxygen atoms.
An atom's innermost electron shell holds a maximum of two electrons, and each succeeding shell hold a maximum of ____ electrons.
Eight.
What main factor determines a star's lifespan?
A star's lifespan is determined by its mass.
What have we observed occuring to distant galaxies relative to the position of our own?
The farther away a galaxy is to us, the faster it appears to be receding from us.
What is the chemical formula of Potassium Nitrate?
KNO3
Covalent bonding is when:
Atoms bond by sharing valence (outermost) electrons.
To what process to stars owe their existence?
Nuclear fusion
How does the Doppler Effect tie into redshift and blueshift?
Like with sound waves, when a large, light-emitting stellar body move towards Earth, the light waves are squashed, shifting the light towards the blue end of the spectrum. producing blueshift. When the body moves away, the light waves are stretched, producing redshift.
When presented with the molecular model of Potassium Nitrate, the potassium atom does not have the connecter lines between atoms representing covalent bonding. Why is it still a part of the molecule?
Ionic bonding.
Ionic bonding is when:
Atoms bond by permanently losing or gaining an electron.
In what direction relative to the Sun do the planets orbit?
The planets all orbit the Sun in the same direction it rotates.
What two circumstances cause relativistic time dilation on a noticable scale?
Both travelling at speeds greater than 90% the speed of light and travelling near incredibly massive objects like black holes causes time to dilate in terms of years.