Answer:
2
Explanation:
There are at least 2 atoms in a molecule
doing
MSDS
drink
eat
mix
goggles
safety shower
water
acids
Rule number one in laboratory safety is know what you are
doing
.
The best protections from chemical splashes and spills are an ________
to cover your body and _________
for your eyes.
Never
eat
food or
drink
liquids from a lab container, even if it has been thoroughly washed.
Rinse skin thoroughly with
water
after a chemical splash.
A _________
should be used for more significant spills.
Pour
acids
into water, never the other way around.
Do not
mix
chemicals unless you know what the product of the reaction will be.
A _________
describes important safety and reactivity information about a chemical.
Fill in the blanks please
nuclei and cell walls
B.
chloroplasts and endomembrane systems
C.
cilia and flagella
D.
ribosomes and mitochondria
(2) rubidium (4) cesium
Answer is: 3) francium.
The atomic radius of a chemical element is a measure of the size of its atom.
The atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.
Potassium (K), rubidium (Rb), ceasium (Cs) and francium (Fr) are in group 1 (the alkali metals) of the periodic tabl.
The atomic radius increases down the group of Periodic table and francium is on the bottom of the group 1 with highest atomic number.
The atom with the largest atomic radius among potassium, rubidium, cesium, and francium is francium, due to it being furthest down the group of alkali metals.
The atomic radius increases as we move down a group on the periodic table. This is because the number of energy levels increases, which causes the electron cloud to expand. Hence, in this case, the largest atomic radius would belong to francium, as it is the furthest down the group of alkali metals (which includes potassium, rubidium, and cesium).
#SPJ6
Swimming in the river would be easy because the salty water has a higher buoyancy hence one can easily swim and are less likely to sink. Water activities that involve drinking the water will cause immediate dehydration because the body will lose water through osmotic pressure.