What I Know
Directions: Choose the letter of the best answer and write it on your
notebook/on a separate sheet of paper
1. The atomic number tells the
a number of electrons in the atom
b. number of protons in the atom
number of neutrons in the atom
d. number of protons and neutrons
2. The number of protons and neutrons in a nucleus is the
a. 2
a. Atomic mass
b. Atomie number
c. Mass number
d. Nucleons
3. Carbon has 6 protons. How many electrons does Carbon have?
b.4
d8
4. Sodium has an atomic number of 11. How many protons does Sodium
(Na) have?
b. 10
e. 11
5. Hydrogen has one (1) proton and electron. How many neutrons does
Hydrogen have?
al
b. 2
c.3
d. Zero

pa help po need ko na now​