I miss school for personal reasons and now im back and i don’t understand anything please help i dont want to fail

E = 2.80×10⁻¹⁶ j

E = 5.37×10⁻¹⁷j

Explanation:

Given data:

Frequency of photon = 4.23 ×10¹⁷ Hz

Energy of photon = ?

Solution:

Formula:

E = h× f

E = 6.63×10⁻³⁴ js ×4.23 ×10¹⁷ Hz

Hz = s⁻¹

E = 28.0×10⁻¹⁷ j

E = 2.80×10⁻¹⁶ j

2)

Given data:

Frequency of photon = 8.10×10¹⁶ Hz

Energy of photon = ?

Solution:

E = h× f

E = 6.63×10⁻³⁴ js ×  8.10×10¹⁶ Hz

Hz = s⁻¹

E = 53.7×10⁻¹⁸j

E = 5.37×10⁻¹⁷j

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.