LEAP 2025 Science Grade 7 Chapter 3

LEAP 2025 Science Grade 7 Chapter 3 Sample

1 pt
1.

How many protons does an atom of cobalt have?

1 pt
3.

Which of the following is not a property of most metals?

1 pt
4.

The majority of elements on the Periodic Table are?

1 pt
6.

Neutral lithium has three protons. During a chemical reaction, one electron is removed. How many protons does lithium have now?

1 pt
8.

With the exception of the element hydrogen, the atomic number and the atomic mass of each element are