What does it mean that gold has a specific heat capacity of 0.135 j/g*c

A specific heat capacity of 0.135 J·°C⁻¹g⁻¹ means that it takes 0.135 J of energy to change the temperature of 1 g of gold by 1 °C.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

they are made of gases.

they have a spherical shape.

they make energy through fusion.