Express each number in scientific notation
a. 700
c. 4,500,000
b. 38,000
d. 685,000,000,000
e. 0.0054
€. 0.687
& 0.76
h 0.8

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )

the answer is 0.42 is that is an option. this question provides no info